Your immune system is an essential part of your health and well-being.  It is your body's primary defense against harmful organisms that can make you sick.  You should keep your immune system strong and healthy at all times so that it can always perform its function of fighting off harmful bacteria and viruses that you come into contact with everyday.

One way of keeping your immune system healthy is to avoid the things that can weaken it.  Here are 10 factors that can weaken your immune system:

1. Smoking

Smoking is one of the biggest factors that can weaken your immune system.  Cigarette smoke contains plenty of toxins that have the power to destroy your immune cells and affect their normal function.  This is one of the reasons why smokers are prone to respiratory conditions like pneumonia and bronchitis.  You should avoid smoking to keep your immune system strong and healthy.

2. Excessive Alcohol

Excessive alcohol consumption has many negative effects on your brain and body.  It can also cause damage to your immune system, lower your resistance and make you susceptible to diseases like tuberculosis.

3. Lack of Sleep

Sleep is very important for your physical and mental rest.  It is your body's way of recharging itself and restoring its energy and natural defenses against infections.  If you deprive yourself of sufficient sleep, you are also weakening your immune system and your resistance to infections and diseases increases.

4. Sedentary Lifestyle

If you are a couch potato and you lack exercise and other physical activity, you are actually weakening your immune system.  Exercise is a healthy habit that helps to increase your white blood cells.  These cells are responsible for protecting you from infectious diseases.  You should take sufficient exercise to keep your body strong and healthy.

5. Fatigue

If exercise can help to boost your immune system, too much physical activity and fatigue can also lead to a weak immune system.  You don't become stronger by wearing yourself out and pushing yourself too far.  It can cause fatigue and impair your immune system instead.  This makes you prone to diseases.  You should give yourself enough time to rest and recover your lost energy.

6. Stress

Stress can make you sick because it can cause a hormonal imbalance which weakens your immune system.

7. Insufficient water intake

Water is the most important fluid in your body and it plays a big role in keeping you up physically and mentally.  Aside from keeping your body hydrated, it also helps to protect you from infections by flushing out toxins which could have kept your immune system busy. 

8. Poor Hygiene

Poor or improper hygiene affects your immune system because you are exposing yourself to harmful organisms.  You should practice proper hygiene to make it easy for your immune system to perform its tasks.

9. Overexposure to the sun

The sun is an excellent source of energy and vitamin D, but it can weaken your immune system if you expose yourself long enough.  Too much exposure to the sun can impair your resistance, weaken your immune system and make you susceptible to diseases.


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