10 Habits That You Don’t Realise It Actually Weaken Your Immune System

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Habits that weaken immune system

Do you realise that there are several habits that actually weaken your immune system? You might not realise that you do it on daily basis.

Immune is the body’s defence system which is very important to fight bacteria and viruses from outside.

Therefore, we must always maintain our immune system. However, sometimes without realizing it, some of the daily habits that we do can actually make our immune system decrease.

10 Habits That Weaken Your Immune System

Here are some daily habits that can make your immune system decrease.


1. Being Lonely

Believe it or not, feeling lonely can weaken your immune system.

Research shows that the less you have friendly connections at home, work, or society, the more likely you are to get sick, experience anxiety, and live a shorter life than other people.

People who have more connections and friendships tend to fight the virus better than those who have few friends.

Therefore, try to keep in touch with your friends and spend sometimes with your families no matter how busy you are.

2. Lack of Sleep

Daily habits that weaken your immune system which in turn is that you always feel tired.


This is often due to lack of sleep.

Poor sleep can cause a decrease in body immunity and cells that function to fight bacteria.

Therefore, the right way to increase body immunity is to sleep at night for 7 to 9 hours without any interference.

So if you wake up feeling tired, it means you don’t have good quality sleep.

Read Also: 10 Tricks on How to Sleep Easier

3. Being Pessimistic

Daily habits that make the body’s immune system decrease, which is to be pessimistic.


People who have a pessimistic attitude are more at risk for stress.

According to research conducted by UCLA, law students who are optimistic in their first semester tend to have better immunity than students who are pessimistic.

This is because people who are always optimistic and positive will usually take care of themselves better than those who are not.

So if you are one of those pessimistic people then always try to make excuses to think that you are lucky.

This will encourage you to think positively and be optimistic.


4. Be closed off

People who are open by always expressing their opinions and feelings through constructive comments are proven to increase immunity.

According to research from UCLA, couples who express their feelings with sarcasm and humiliation have been shown to decrease the production of cells that kill bacteria and increase stress hormones by 40% more than those who express their opinions in a positive and affectionate way.

Closed people also tended to have more passive killer cells than expressive people.

5. Stress

The next habits that can weaken your immune system decrease is stress.

Stress can be caused by many factors, such as work, health, family, and so on.


Stress can cause bacteria-killing cells to work more slowly and reduce macrophage activity.

Macrophages are cells that can amplify immune responses.

In fact, a person is more likely to be at risk of falling ill in the first year after their partner dies.

Therefore, if you feel that you are experiencing stress, try to do fun activities, such as on vacation.

Read Also: 15 Effective Ways to Relieve Stress

6. Too Often Using Public Goods

A daily habit that we may without realizing it can reduce endurance is too often use public goods, one of which is a pen.


Viruses and bacteria can move through direct contact, and if you frequently use public or shared items, the risk of being infected with viruses and bacteria increases.

Try as much as possible to use personal items that you bring yourself.

7. Lack of exercise

Daily habits that can reduce endurance and weaken your immune system is lack of exercise.

In this day and age, people are too accustomed to using vehicles to travel.

This will make these people move less and less.


Sport doesn’t always have to be in a sports venue, you can do it anywhere.

One of the easiest and easiest examples is to walk.

According to experts, it takes about 30 minutes of aerobic exercise to increase endurance.

8. Being in a Smoker’s Environment

Daily habits that can weaken  which in turn are being in the environment of smokers.

This is because people who are passive smokers are much more dangerous than those who are active smokers.


Passive smoking increases the risk of developing respiratory problems and death.

Therefore, as much as possible avoid smoking or being around people who are smoking.

If necessary, remind them to stop immediately.

9. Too Often Consuming Antibiotics

Too often taking antibiotics can actually make you immune to the drug.

Over time, these drugs can cause serious infections.


People who take antibiotics tend to experience decreased levels of cytokines, hormones that are messengers of the immune system.

When your immune system is suppressed, you are more likely to develop resistant bacteria or become sick later in life.

Therefore, take antibiotics only if you have a bacterial infection.

Always finish the antibiotic medication that is being consumed and do not share it with other people.

10. Too Serious

The last daily habits that can weaken your immune system are being too serious.


Try to take time between your work to entertain yourself and relieve fatigue, such as by watching YouTube or chatting and joking with your office friends.

Laughter can reduce stress hormones and boost the immune system.