The harmful effects of Covid-19 infections are not limited to the lungs and respiratory tract of the human body. Numerous cases around the world have shown that the multifarious impact of Coronavirus can damage other organs, including the heart, nerves, kidneys, and skin. Apart from these, Covid-19 causes major damage to the brain. The problem may persist in patients with mild Covid symptoms or who have recovered already. For many COVID survivors, the problem might emerge late. In some cases, Covid-19 leaves a long-lasting impression on the brain. The most common problem patients face is brain fog. Let’s discuss some basic issues about post-COVID brain fog.

What is brain fog?

Brain fog is one of the critical problems in the brain. This problem weakens the cognitive capacity of the brain, which makes the patients mentally exhausted. As a result, the brain becomes hesitant to do anything. 

While an individual suffers from brain fog, the normal functioning of his/her brain gets disrupted. In this situation, the memory becomes weak, and the way of thinking also changes. Therefore, it becomes difficult for the patient to concentrate. As a result, the person loses his/her regular efficiency at study, professional work, and/or other regular activities.

Read Covid-19 Antibody Test: What You Need to Know

What is Covid-19 Brain Fog?

Experts have found that about 20% of the covid survivors return to the doctor after a few weeks of recovery with brain fog symptoms. Reportedly, these patients did not have any issues with memory or brain before the Covid infection. Post-Covid brain fog may lead to diverse health conditions like strokes, mental disorders, delirium, delusions, fatigue, anxiety. In fact, scientists have found that coronavirus-induced neurological problems are limitless.

What does brain fog feel like?

If someone is affected by brain fog, s/he might experience some common signs and symptoms such as loss of memory, failure to understand any subject easily, failure to pay full attention to any matter, repeatedly falling into confusion, being hesitant for a long time in making a decision, losing patience, etc.

Read Long COVID Syndrome: Long Term Effects of COVID-19

How does Covid-19 affect the Brain?

According to researchers, this 'brain fog' is usually seen immediately after being discharged from the hospital. However, it does not stay too many months if proper measures are taken. Since the first emergence of Covid-19 infection in the human body in December 2019, the disease has turned into a pandemic. Still today, the virus is new to the human body's immune system. This is why the brain becomes overactive after the arrival of this new virus inside the body. Now the question is, how does the Covid-19 reach the brain?

The virus can pass through the hematogenous space or blood as well as the olfactory space (middle of the nose). The body contains certain receptors called angiotensin-converting enzymes, which are found in endothelial cells in the brain and the Coronavirus can easily get attached to that.

The covid affects both sides of the brain. The virus also affects veins and arteries in the brain. When the blood vessels constrict, it hinders the natural flow of blood circulation in the human body. As a result, the supply of oxygen also decreases. Nevertheless, coronavirus has a rapid effect on the brain. The amount of paralysis is much higher in stroke with covid.

Read COVID-19 Third Wave: Things We Need to Know

Improve memory power and brain health after Covid

Following are some of the ways to improve memory and brain health after covid.

Adequate sleep

Daily sleep is very effective in protecting and improving the brain. It is because the brain gets to rest in the middle of sleep. Usually, adults need eight hours of sleep daily, and good sleep makes the brain more efficient. The brain stores the latest information during sleep. And sleep is called a memory charger. During sleep, the memory becomes ready to capture the next memory. However, some patients might face sleeping disorders after Covid. In that case, the doctor's consultation is needed.

Playing memory games

Since the virus damages memory cells, the patient should invest some time each day in memory games, and related activities to recover lost attention and memories. Moreover, the patient should create ways that can stimulate the mind. 

However, it is also recommended for a healthy person. All the nerves of the brain, including the memory part of the brain are activated during the play. Which eventually combats the problem of memory loss and helps in increasing the memory power.

Read How Long Will Your COVID-19 Coronavirus Vaccination Protection Last?

Exercise for brain

The more the patient uses the brain, the more the brain will work. The human brain has a wonderful ability; this ability is known as nerve flexibility. With the right stimulus, the human brain is capable of forming new neural pathways and changing existing connections. That is why the patient should work on learning something new. Thus the brain will get something new to work on. 

The new information eventually helps to increase the cognitive ability, which will increase the strength of nerve flexibility. In this case, puzzle-solving, scrabble, and sudoku can be good exercises for the brain. Possibly those tasks will greatly help to improve the brain activities like focusing, concentrating, power of thinking, memorizing, decision making, etc. 

Healthy diet

20% of the sugar and energy from the food goes to the brain. The brain functions totally depend on its glucose levels. If the level of glucose-intake changes, various cognitive problems might arise. When a person eats his/her favorite foods, it releases the chemical dopamine into the 'reward area' of the brain resulting in a happy feeling in the mind. Brain cells are made up of fats. So one should not remove oil and fat from the food list. Furthermore, almonds, oilseeds, fish, etc., are good for brain health.

Read Coronavirus: How to get your smell and taste back after COVID-19?

Aerobic exercise

The hippocampus area of the human brain works to retain memory in the brain. According to scientists, exercise increases the memory of the brain along with the body. And new cells are born in the brain. Exercise makes the hippocampus excited and swollen which eventually improves the process of retaining memories.

Avoid drugs and alcohol

Drugs and alcohol adversely affect the brain. For Covid-19 survivors, consumption of alcohol and drugs is strictly prohibited. So, avoiding these substances will provide the brain a chance to heal.

Meditation

It is harder to find a more beneficial practice than 'meditation' to keep the brain well. It helps the mind to increase concentration. Moreover, meditation is a very powerful way to deal with stress. Apart from these, listening to music, vacation, reading books, and cognitively stimulating activities can help brain development after Covid-19.

Read How to heal lungs naturally and improve breathing after recovering from COVID-19?

 Bottom Line

As the Covid-19 is a comparatively new disease, adequate research initiatives have not been done yet. Covid-19 infection might affect the brain, memory, and cognitive abilities in diverse ways. The type and level of damage caused by post-covid brain fog might be different for different patients. However, following a proper diet, exercise, and lifestyle the Covid survivors are expected to retain their memory and cognitive abilities. However, the recovery period may vary from person to person.