However, most men do object to baldness, which can be prevented in nearly every case. To produce hair on a polished pate is a different proposition. It is indeed difficult. If you will look at a picture of the circulation of the blood in the scalp, you will notice that the arteries supplying it come from above the eye sockets in front, from before and behind the ears on the sides, and from the nape of the neck in the rear. They spread out and become smaller and smaller as they travel toward the top of the head, and especially toward the back. The scalp is well supplied with blood, but it is not given much exercise. The tendency is for the blood stream to become sluggish, deposits gradually forming in the walls of the blood-vessels, which make them less elastic and decrease the size of the lumen. The result is less food for the hair roots and food of inferior quality. This process of cutting off the circulation in the scalp is largely aided by the tight hats and caps worn by men, which compress the blood-vessels. It is quite noticeable that people with round heads have a greater tendency to become bald than those with more irregular heads. The reason is probably that the hats fit more snugly on the round-headed people. There are many exceptions. Women are not so prone to baldness as men, because they wear hats that do not exclude the air from the hair nor do they compress the blood-vessels. Let those men who dislike to lose their hair massage the scalp for a short while daily, beginning above the eyes, in front of the ears and at the nape of the neck and going to the top of the head. Then let them wear as sensible hats as possible, avoiding those that exert great pressure on the blood-vessels that feed the scalp. Thus they will not only be able to retain their hair much longer than otherwise, but the hair that is well fed does not fade as early as that which lives on half rations. In the case of preserving the hair, an ounce of prevention is worth a ton of cure. The man who can produce a satisfactory hair restorer that will give results without any effort on the part of the men can become a millionaire in a short time. The hair is a modified form of skin. Each hair is supplied with blood, and the reason that the hair stands up during intense fear is that to the lower part of the shaft is attached a little muscle. During fear this contracts, as do other involuntary muscles, and then the hair stands up straight instead of being oblique. As a rule people protect the skin too much. The best protection they have against cold is a good circulation. With a poor circulation it is difficult to keep warm in spite of much clothing. Coldness is also largely a state of mind. People get the idea of cold into the head and then it is almost impossible for them to keep warm. On the same winter day we may see a man in a thick overcoat trying to shrink into himself, shivering, while a lady passes blithely by, with her bosom bared to the wind.