Hair grows in three different cycles: anagen, catagen, and telogen. About 90% of the hair on the head is in the anagen, or growth phase, which lasts anywhere from two to eight years. The catagen, or transition phase, typically lasts 2-3 weeks, during which the hair follicle shrinks. During the telogen cycle, which lasts around two to four months, the hair rests.
Nutrition can play a part. If you're not eating a well-balanced diet or are severely dieting or anorexic, it will affect your hair. However, if it is nutritional, it will be a temporary hair loss. Return to a well-balanced diet and hair should return in 4 – 6 months. Supplements must be used with caution and women must understand that vitamins in excess, even those purported to help grow hair, can be detrimental and have an adverse affect. In this day and age, people are rarely deficient in the hair loss vitamins folic acid and biotin. There would be other symptoms beyond hair loss. A B-vitamin rich supplement can help grow hair, but it might not make more hair. I advise using any supplement with caution and eating vitamin-rich foods instead. And ALWAYS tell your physician the vitamins, herbs, and medications (over the counter and prescription) you are using.
Side effects and concerns: Minoxidil is safe, but it can have unpleasant side effects even apart from the alcohol-related skin irritation. Sometimes the new hair differs in color and texture from surrounding hair. Another risk is hypertrichosis — excessive hair growth in the wrong places, such as the cheeks or forehead. (This problem is more likely with the stronger 5% solution.)
When several of my classmates back in my senior year of college went bald (one went bald in about one year) I couldn’t believe my reaction. I was envious. Unbelievably, I wanted to go bald. I wanted to lose all my hair from the top of my head, leaving just a fringe on the sides and back: male pattern baldness. I had no idea guys still in their early 20s could go bald and I was shocked. I couldn’t wait for it to happen to me. I tried to shake off the urge, but had to finally admit to myself that male pattern baldness was I really, really wanted. But not until after I was married. I was afraid that no woman would want me if I was bald. Back then, I had no idea that there are women out there who actually prefer bald men. Lucky for me, I’m married to one of those women. When my wish finally came true in my early 50s, my wife was thrilled and she urged me to just let myself go bald. I did, and it happened very quickly, as if to make up for lost time. After only two years of finding hundreds of hairs on my pillow each morning and wads of my hair plugging our shower drain I was finally bald, male pattern bald. The rapid transition to bald was a very pleasant experience for both my wife and me and I absolutely LOVE being bald. My wife loves it too and still tells me how sexy she thinks it is. I love it when she kisses me on top of my shiny bald head. What a turn on! Going bald was one of the best things that ever happened to me. I just wish it had happened immediately after my wife and I were married, 40 years ago. I wish I had started shedding hair off the top of my head on our honeymoon and had been bald by our second wedding anniversary.