If you have suddenly started consuming more calories or cut back on exercise, so you wouldn't’t be surprised if the number on the scale goes higher. But what if you are doing every possible thing to maintain your health and your weight still goes up? Taking care of your body, staying fit and eating well should be one’s top priorities for having a long and healthy life. There are times when you are in the process of losing weight or trying to stay healthy but you still gain unnecessary weight. Sometimes, there are several reasons that remain unnoticed which causes unwanted weight gain. Here is list of few shocking and surprising reasons why people gain weight.
1. Lack of Sleep- 
Being awake till late night causes obesity. This is because your body does not get enough sleep that it requires. It is necessary for an adult to have 7-8 hours of sleep so that their body works properly. Changes in hormone levels increase hunger and appetite and make you feel not as full after eating. Waking up till late also causes munching snacks which means taking more calories.
2. Stress:
Stress is another important reason for gaining unwanted weight. When life’s demands get too intense, our bodies go into survival mode. The stress hormone, Cortisol, is secreted which causes an increase in appetite. This will cause more intake of high calorie comfort food to calm down the stress level. This combination is perfect for gaining weight.
3. Hypothyroidism-
If your thyroid gland is not making enough thyroid hormone, you will feel tired, weak and cold which will ultimately result in weight gain. If there is lack of thyroid hormones, your metabolism will slow down making you gain weight more likely.
4. Polycystic Ovary Syndrome (PCOS)- PCOS is a common hormonal problem in women. Most women with PCOS grow small cysts on their ovaries. This condition leads to hormone imbalance and affects the women’s menstrual cycle. This can even lead to extra body hair and acne. Women with this condition are resistant to insulin, so it may cause weight gain.
5. Antidepressants-
There are various antidepressants that causes weight gain. If you feel that the medicine is causing you weight gain then ask your doctor to change it. Many people experience weight gain after they have started the drug treatment which help them feel better. This also leads to a better appetite. Depression can itself cause changes in weight.
