highlander wrote:I had no concerns about my hair because they were healthy and cool but for some time, I have realized I am losing hair. Stress and depression can cause hair loss but what are the other reasons and how can I stop losing my hair ... I really don't want to lose my hair

Medical Scientists believe that MPHL (Male Pattern Hair Loss) is due to two reasons. First is inherited from the either sides of the family. Second is due to biological chemical called a dihydrotestosterone, commonly referred as DHT. DHT is a biological material in the body, which shrinks the hair follicle.
Male pattern hair loss is a widespread situation, where men encounter disappearing of hair on the scalp. This also results in receding hairline or balding on the scalp area of the head. The treatment of Propecia Generic Finasteride stabilizes the overall DHT level and help stop follicles.
Generic Propecia contains the active ingredient Finasteride, a type II 5-alpha reductase drug that restricts the conversion of testosterone to dihydrotestosterone.
I'm 40 and have a hair loss problem since last 5 yrs. I tried many drugs, shampoos, gels and creams and finally I settled for Propecia Finasteride. Propecia is the best medicine for hair loss. It certainly has some side effects and these side effects disappear as our body gets used to the medication. I'm using Propecia for year and half. I too had some side effects like decreasing sexual desire in the beginning and as my body got used to it slowly, most of the side effects disappeared. As per my experience Propecia is long term medication and it should be continued at least for six months.
After year and a half, today 80% of my receding hairline disappeared with negligible side effects.