Cognitive Health Definition

Cognitive health is the ability to clearly think, learn, and remember. It is an important component of brain health. Others include motor function, which is how well a person can make and control movements; emotional function, which is how well a person can interpret and respond to emotions; and sensory function which evaluates how well a person can feel and respond to sensations of touch, such as pressure, pain, and temperature.

What Is Brain Health?

Brain health refers to how well a person’s brain functions across several areas. Aspects of brain health include:

• Cognitive health — how well you think, learn and remember
• Motor function — how well you make and control movements, including balance
• Emotional function — how well you interpret and respond to emotions (both pleasant and unpleasant)
• Tactile function — how well you feel and respond to sensations of touch — including pressure, pain, and temperature

Brain health can be affected by age-related changes in the brain, injuries such as stroke or traumatic brain injury, mood disorders such as depression, substance use disorder or addiction, and diseases such as Alzheimer’s disease. While some factors affecting brain health cannot be changed, there are many lifestyle changes that might make a difference.

A growing body of scientific research suggests that the following steps are linked to cognitive health. Small changes may really add up: Making these part of your routine could help you function better.

• Take Care of Your Physical Health
• Manage High Blood Pressure
• Eat Healthy Foods
• Be Physically Active
• Keep Your Mind Active
• Stay Connected with Social Activities
• Manage Stress
• Reduce Risks to Cognitive Health

Research shows that a combination of these healthy lifestyle behaviors may also reduce the risk for Alzheimer’s disease.

Take Care of Your Physical Health

Taking care of your physical health may help your cognitive health. You can:

• Get recommended health screenings.
• Manage chronic health problems like diabetes, high blood pressure, depression, and high cholesterol.
• Consult with your health care provider about the medicines you take and possible side effects on memory, sleep, and brain function.
• Reduce risk for brain injuries due to falls and other accidents.
• Limit the use of alcohol (some medicines can be dangerous when mixed with alcohol).
• Quit smoking, if you currently smoke. Also, avoid other nicotine products such as chewing tobacco.
• Get enough sleep, generally seven to eight hours each night.

Manage High Blood Pressure

Preventing or controlling high blood pressure, not only helps your heart, but may help your brain too. Decades of observational studies have shown that having high blood pressure in midlife, the 40s to early 60s, increases the risk of cognitive decline later in life.

High blood pressure often does not cause signs of illness that you can see or feel. Routine visits to your doctor will help pick up changes in your blood pressure, even though you might feel fine. To control or lower high blood pressure, your doctor may suggest exercise, changes in your diet, and if needed medications. These steps can help protect your brain and your heart.

Eat Healthy Foods

A healthy diet can help reduce the risk of many chronic diseases such as heart disease or diabetes. It may also help keep your brain healthy.

In general, a healthy diet consists of fruits and vegetables; whole grains; lean meats, fish, and poultry; and low-fat or nonfat dairy products. You should also limit solid fats, sugar, and salt. Be sure to control portion sizes and drink enough water and other fluids.

Researchers are looking at whether a healthy diet can help preserve cognitive function or reduce the risk of Alzheimer’s. For example, there is some evidence that people who eat a Mediterranean diet have a lower risk of developing dementia.

While scientists aren’t sure yet why the Mediterranean diet might help the brain, its effect on improving cardiovascular health might in turn reduce dementia risk. In contrast, the typical Western diet often increases cardiovascular disease risk, possibly contributing to faster brain aging.

Be Physically Active

Being physically active through regular exercise, household chores, or other activities has many benefits. It can help you:

• Keep and improve your strength
• Have more energy
• Improve your balance
• Prevent or delay heart disease, diabetes, and other concerns
• Perk up your mood and reduce depression

Studies link ongoing physical activity with benefits for the brain and cognition as well, although a strong link between physical activity and Alzheimer’s disease prevention has not yet been documented.

In one study, exercise stimulated the human brain’s ability to maintain old network connections and make new ones that are vital to cognitive health. Other studies have shown that exercise increases the size of a brain structure important to memory and learning, resulting in better spatial memory. Aerobic exercise, such as brisk walking, is thought to be more beneficial to cognitive health than non-aerobic stretching and toning exercise. One study found that the more time spent doing moderate levels of physical activity, the greater the increase in brain glucose metabolism or how quickly the brain turns glucose into fuel, which may reduce the risk for developing Alzheimer’s disease.

Clinical Trials on Exercise for Cognitive Health

Volunteers are needed for clinical trials that are testing different forms of exercise for cognitive health. By joining one of these studies, you may learn new ways to be physically active and also contribute useful information to help other older adults in the future.

Keep Your Mind Active

Being intellectually engaged may benefit the brain. People who engage in personally meaningful activities, such as volunteering or hobbies, say they feel happier and healthier. Learning new skills may improve your thinking ability, too. For example, one study found that older adults who learned quilting or digital photography had more memory improvement than those who only socialized or did less cognitively demanding activities. Some of the research on engagement in activities such as music, theater, dance, and creative writing has shown promise for improving quality of life and well-being in older adults, from better memory and self-esteem to reduced stress and increased social interaction.

However, a recent, comprehensive report reviewing the design and findings of these and other studies did not find strong evidence that these types of activities have a lasting, beneficial effect on cognition. Additional research is needed, and in large numbers of diverse older adults, to be able to say definitively whether these activities may help reduce decline or maintain healthy cognition.

Lots of activities can keep your mind active. For example, read books and magazines. Play games. Take or teach a class. Learn a new skill or hobby. Work or volunteer. These types of mentally stimulating activities have not been proven to prevent serious cognitive impairment or Alzheimer’s disease, but they can be fun! Plus, findings from observational studies suggest that some informal mentally stimulating activities, such as reading or playing games, may lower the risk of Alzheimer’s-related cognitive impairment and dementia.

Some scientists have argued that such activities may protect the brain by establishing “cognitive reserve.” They may help the brain become more adaptable in some mental functions so it can compensate for age-related brain changes and health conditions that affect the brain.

Be wary of claims that playing certain computer and online games can improve your memory and other types of thinking as evidence to back up such claims are evolving.

Stay Connected with Social Activities

Connecting with other people through social activities and community programs can keep your brain active and help you feel less isolated and more engaged with the world around you. Participating in social activities may lower the risk for some health problems and improve well-being.

People who engage in personally meaningful and productive activities with others tend to live longer, boost their mood, and have a sense of purpose. Studies show that these activities seem to help maintain their well-being and may improve their cognitive function.

So, visit with family and friends. Consider volunteering for a local organization or join a group focused on a hobby you enjoy. Join a walking group with other older adults. Check out programs available through your Area Agency on Aging, or other community organizations. Increasingly, there are groups that meet online too, providing a way to connect from home with others who share your interests or to get support.

We don’t know for sure yet if any of these actions can prevent or delay Alzheimer’s and age-related cognitive decline. Still, some of these have been associated with a reduced risk of cognitive impairment and dementia.

Manage Stress

Stress is a natural part of life. Short-term stress can even focus our thoughts and motivate us to take action. However, over time, chronic stress can change the brain, affect memory, and increase the risk for Alzheimer’s and related dementias. To help manage stress and build the ability to bounce back from stressful situations, there are many things you can do:

• Exercise regularly.   going for a walk, especially in nature, can restore a sense of well-being.
• Write in a journal. Putting your thoughts or worries on paper can help you let go of an issue or see a new solution.
• Try relaxation techniques. Practices such as mindfulness, which involves focusing awareness on the present moment without judgment or breathing exercises can help your body relax. These can help lower blood pressure, lessen muscle tension, and reduce stress.
• Stay positive. Release grudges or things beyond your control, practice gratitude or pause to enjoy the simple things, like the comfort of a cup of tea or the beauty of a sunrise.

Reduce Risks to Cognitive Health

Genetic, environmental, and lifestyle factors are all thought to influence cognitive health. Some of these factors may contribute to a decline in thinking skills and the ability to perform everyday tasks such as driving, paying bills, taking medicine, and cooking.

Genetic factors are passed down (inherited) from a parent to child and cannot be controlled. But many environmental and lifestyle factors can be changed or managed to reduce your risk. These factors include:

• Some physical and mental health problems, such as high blood pressure or depression
• Brain injuries, such as those due to falls or accidents
• Some medicines, or improper use of medicines
• Lack of physical activity
• Poor diet
• Smoking
• Drinking too much alcohol
• Sleep problems
• Social isolation and loneliness

Cognitive vs Mental Health

Cognitive health as a general umbrella can refer to brain health. Mental health is one subset of brain health that patients and doctors should closely monitor to care for their well-being. Cognitive and mental health are closely related within the study and care of mental health. There is a category of mental health disorder which is referred to by the term ‘cognitive disorders.’

Physical and Mental Health Problems

Many health conditions affect the brain and pose risks to cognitive function. These conditions include:

• Heart disease and high blood pressure — can lead to stroke and changes in blood vessels in the brain that can lead to dementia
• Diabetes — damages blood vessels throughout the body, including in the brain; increases the risk for stroke and heart attack; increases risk for Alzheimer’s
• Alzheimer’s disease and related dementias — cause a buildup of harmful proteins and other changes in the brain that lead to memory loss and other thinking problems
• Stroke — can damage blood vessels in the brain and increase the risk for vascular dementia
• Depression — can lead to confusion or attention problems and has been linked to dementia
• Delirium — shows up as an acute state of confusion, often during a hospital stay, and is associated with subsequent cognitive decline

It’s important to prevent or seek treatment for these health problems. They affect your brain as well as your body and receiving treatment for other conditions may help prevent or delay cognitive decline or thinking problems.

Brain Injuries

Older adults are at higher risk of falls, car accidents, and other accidents that can cause brain injury. Alcohol and certain medicines can affect a person’s ability to drive safely and also increase the risk for accidents and brain injury. Learn about risks for falls and participate in fall prevention programs. Wear helmets and seat belts to help prevent head injuries as well. But don’t let a fear of falling keep you from being active. Overcoming this fear can help you stay active, maintain your physical health, and prevent future falls.

Medicines

Some drugs and combinations of medicines can affect a person’s thinking and the way the brain works. For example, certain ones can cause confusion, memory loss, hallucinations, and delusions in older adults.

Medicines can also interact with food, dietary supplements, alcohol, and other substances. Some of these interactions can affect how your brain functions. Drugs that can harm older adults’ cognition include:

• Antihistamines for allergy relief
• Medicines for anxiety and depression
• Sleep aids
• Antipsychotics
• Muscle relaxants
• Some drugs that treat urinary incontinence
• Medications for relief of cramps in the stomach, intestines, and bladder

Talk with your doctor if you’re concerned that your medications may be causing cognitive problems. Do not stop taking any medications you’ve been prescribed without first talking with your health care provider.

Lack of Physical Activity

Lack of exercise and other physical activity may increase your risk of diabetes, heart disease, depression, and stroke; all of which can harm the brain. In some studies, physical activity has been linked to improved cognitive performance and reduced risk for Alzheimer’s disease. In general, staying active is known to lower the risk of high blood pressure, stroke, and symptoms of depression, all of which in turn can improve cognitive health.

Poor Diet

A number of studies link eating certain foods with keeping the brain healthy and suggest that other foods can increase health risks. For example, high-fat and high-sodium foods can lead to health problems, such as heart disease and diabetes, that can harm the brain.

Smoking

Smoking is harmful to your body and your brain. It raises the risk of heart attack, stroke, and lung disease. Quitting smoking at any age can improve your health.

Alcohol

Drinking too much alcohol affects the brain by slowing or impairing communication among brain cells. This can lead to slurred speech, fuzzy memory, drowsiness, and dizziness. Long-term effects may include changes in balance, memory, emotions, coordination, and body temperature. Staying away from alcohol can reverse some of these changes.

As people age, they may become more sensitive to alcohol’s effects. The same amount of alcohol can have a greater effect on an older person than on someone who is younger. Also, some medicines can be dangerous when mixed with alcohol. Ask your doctor or pharmacist for more information.

Sleep Problems

At any age, getting a good night’s sleep supports brain health. Sleep problems, not getting enough sleep, sleeping poorly, and sleep disorders can lead to trouble with memory, concentration, and other cognitive functions.

Social Isolation and Loneliness

Social isolation and feeling lonely may be bad for brain health. Loneliness has been linked to a higher risk for dementia, and less social activity has been linked to poorer cognitive function.

By taking steps now to reduce your risks for cognitive decline, you’ll help to maintain your cognitive health for the future.

Resources:www.emotiv.com

www.nia.nih.gov