Science universe: Physics articles

T e n Facts about the FDA and Hai r Products In This Chapter Finding out how hair products are regulated for your safety Monitoring hair growth drugs and devices In the United States, it’s common to assume that the U.S. Food and Drug Administration (FDA) looks out for consumer’s welfare when it comes to hair products, from over-the-counter drugs to medical devices for stimulating hair growth. But does it? As this chapter reveals, the answer is both yes and no. If you’re wondering what the FDA’s mission is, here is its mission statement: The FDA is responsible for protecting the public health by assuring the safety, efficacy, and security of human and veterinary drugs, biological products, medical devices, our nation’s food supply, cosmetics, and products that emit radiation. The FDA is also responsible for advancing the public health by helping to speed innovations that make medicines and foods more effective, safer, and more affordable; and hel...

T e n Reasons to Consider a Hair Transplant In This Chapter Considering how you feel about your appearance Improving your face-to-face relations with others Keeping comfortable in hot and cold weather Feeling fed up with non-surgical options Deciding whether a hair transplant is right for you is difficult. You may not only be dealing with your own feelings about it but also those of your family and friends. In this chapter, we give you ten good reasons why a hair transplant may be just what the doctor ordered for you. Bal d Isn’t Making You Feel Beautiful Some people hesitate to get a hair transplant because they think doing so makes them vain. But let’s face it: Everyone wants to feel good about their appearance and goes to some lengths to feel better about how they look. Being told by family members, as some of my patients have been, that “being bald was good enough for Grandpa and should be good enough for you,” isn’...

T e n Pros and Cons of Non- Surgica l Hair Replacement In This Chapter Appreciating the advantages of hair replacement systems Weighing the disadvantages of hair systems Using a so-called “hair system” (discussed in full detail in Chapters 6 and 7) isn’t for everyone, but considering that non-surgical hair replacement is a multibillion dollar industry, it’s clearly the right decision for many. Despite the common stigma and jokes about “rugs” or “mops,” a good hair system isn’t easy to detect, can be easy to use, and can help cover extensive hair loss problems and other scalp deformities. A good hair system also can be a good solution for temporary hair loss. As with most things in life, there are pros and cons to hair replacement systems. In this chapter, we weigh them out for you. The Pros of Hair Replacement Systems Hair systems have definite advantages to some people in some situations. In this section, we share three of the most common reaso...

T e n (or so) Myths abou t Hair Loss In This Chapter Debunking myths about the causes of hair loss Revealing what doesn’t prevent hair loss Because people are so attached to their hair (pun intended), a number of myths have sprung up regarding hair — when and why it goes gray, what causes baldness, and how baldness can be prevented are just a few topics of focus. Wherever people are going bald or worried about losing their hair, myths about hair abound. This chapter turns an objective eye to hair myths so you can separate the serious from the silly when it comes to hair loss. Hair Loss Comes from Your Mother’s Side The idea that you inherit a baldness gene only from your mother’s side of the family is a myth. The inheritance of common baldness appears to be found on the autosomal — the non-sex-related — chromosomes, which means that baldness can come from either parent. Moreover, the baldness gene is a dominant gene, meaning that you need only one gen...