Also called: Psychological stress
We all have stress sometimes. For some people, it happens before having to speak in public. For other people, it might be before a first date. What causes stress for you may not be stressful for someone else. Sometimes stress is helpful – it can encourage you to meet a deadline or get things done. But long-term stress can increase the risk of diseases like depression, heart disease and a variety of other problems. A stress-related illness called post-traumatic stress disorder (PTSD) develops after an event like war, physical or sexual assault, or a natural disaster. If you have chronic stress, the best way to deal with it is to take care of the underlying problem. Counseling can help you find ways to relax and calm down. Medicines may also help

Also called: Clinical depression, Dysthymic disorder, Major depressive disorder, Unipolar depression Depression is a serious medical illness that involves the brain. It's more than just a feeling of being "down in the dumps" or "blue" for a few days.
Depression can run in families, and usually starts between the ages of 15 and 30. It is much more common in women. Women can also get postpartum depression after the birth of a baby. Some people get seasonal affective disorder in the winter. Depression is one part of bipolar disorder. Symptoms can include

1. Sadness
2. Loss of interest or pleasure in activities you used to enjoy
3. Change in weight
4. Difficulty sleeping or oversleeping
5. Energy loss
6. Feelings of worthlessness
7. Thoughts of death or suicide

If you are overweight, you are not alone. Sixty-six percent of adults in the world are overweight or obese. Achieving a healthy weight can help you control your cholesterol, blood pressure and blood sugar. It might also help you prevent weight-related diseases, such as heart disease, diabetes, arthritis and some cancers. Eating too much or not being physically active enough will make you overweight. To maintain your weight, the calories you eat must equal the energy you burn. To lose weight, you must use more calories than you eat.

1. Choosing low-fat,low-calorie foods
2. Eating smaller portions
3. Drinking water instead of sugary drinks
4. Being physically active