Question: What is the main reason for loss of hair. I mean why a guy at the age of 20 would lose his hair (become bald)? Does the stuff that we put on our hair affect, like gel for example? Mahmood

Answer: Dear Mahmood,

There are different causes for hair loss such as the following:

- Hormonal problems (overactive or underactive thyroid gland)
- Use of certain medicines
- Diseases such as lupus, diabetes
- Stress
- Inherited genes that promote male-pattern baldness

Hair gels do not usually cause hair loss unless they contain strong ingredients and chemicals that may affect the hair.