Why do I sweat so much? The skin is composed of three types of glands
which produces secretions called sweat. Generally speaking,dermatologists
believe that normal secretions of all three glands are odorless,or nearly
so,until they are decomposed by normal skin bacteria. The odor Potential is
different for each gland.

The eccrine glands are the major source of perspiration but are relatively
unimportant as a contributor to body odor. These glands contain very low
amounts of organic materials for which bacteria can act upon. Eccrine glands
primary job is to help control body temperature,and are usually inactive until:
the temperature is high,exercising,nervous tension,emotional stress,or
embarrassment comes into play. They produce  perspiration in certain parts
of the body such as the axillae (underarm),palms,soles,and may be triggered
by certain foods containing hot spices.

The next gland is the apocrine gland. These glands become active after
puberty and remain so as long as sexual activity continues. They are rich in
organic material which makes them a major source for
bacteria interaction
and body odor. These glands are concentrated in the axillae,around the
nipples,and genital area. An Idea places for bacteria growth due to
perspiration and lack of quick evaporation of moisture. "There is some
evidence that in women the activity of the apocrine can vary with the
menstrual cycle. These gland are stimulated by emotional stress,such as fear
or pain,and especially by sexual excitement; their activity is not increased by
hot weather or exercise."   

The Sebaceous glands are the third type of skin gland. It's main purpose is to
keep the skin lubricated with an oily material called sebum.They play a
relatively small role in body odor for people that bathe regularly. So in view
of what is known about body odor,there are two obvious approaches to
preventing it: Impede bacteria action,and
reduce sweating. Deodorant soaps
were good for the removal of bacteria;antiperspirants did both. But
according to an
old Consumers Union (CU) report,antiperspirants on the
market at that time were not very affective for people having a condition
known as hyperhidrosis, an abnormality in which large amounts of sweat is
produced by the underarm  glands and sometimes by the glands of the hands
and feet. This kind of abnormal sweating was thought to be due to over
activity of the sympathetic nervous system. Medications were usually of no
use,and in rare instances surgery may have been required.  At that time,no
satisfactory solution was known.

Excessive sweating,particularly of the feet, can be a serious problem for
many people. It has been known to break up friendships as well as
marriages. Odor of the feet is cause by bacteria interacting with sweat on the
feet,and since the feet tend to retain moister,they're a prime breeding
ground for  fungi,which can cause inflammations such as athletes foot.
People that have overly sweaty feet "should whenever possible,wear
sandals or open weaved shoes,and hose of cotton or wool rather than nylon.
Liberal dusting of the feet with plain talc helps to absorb sweat and
discourage the growth of fungi. Lambs wool tucked between the toes keeps
them apart and aids in the evaporation of perspiration." But for general
perspiration control,an antiperspirant would  be a better selection than a
simple deodorant,since it does all the same things and reduces perspiration
as well. Most people find one of the aluminum salt formula
satisfactory,although it may be necessary to try several brands to determine
which works best for you.
Why Do I Sweat So Much?