Im going to cut and paist an exerpt from an article I found in health M*******. here it is. take it for what it is worth.

IF YOU ARE NOT CHANGING YOUR LIFE BY CHANGING THE PH IN YOUR BLOOD, YOU MAY NOT BE MAXIMIZING YOUR GAINS!!!

Remember the litmus test from high school chemistry lab? You stuck a small strip of litmus paper into a solution, and if it turned red, it meant the solution was acidic. If it turned blue, the solution was basic (alkaline).

Well, the body has its own sort of litmus test: It’s called your pH level. And many health care professionals consider a balanced pH level to be the key to good health.

The term pH stands for Potential Hydrogen, which is the concentration of hydrogen ions in a substance or solution. The pH range is 0 to 14. Human blood pH is ideally 7.35. Higher numbers indicate alkalinity; lower numbers indicate acidity.

The body simply cannot tolerate extended acid imbalances. In the early stages of an imbalance, symptoms may include such things as skin eruptions, headaches, allergies, colds and flu, and sinus problems. As things get further out of kilter, weakened systems start to give way. If tissue pH deviates too far to the acid side, oxygen levels decrease and cells die.

On the other side of the coin, it is virtually impossible for a health disorder or disease to sustain itself when your pH is in the neutral zone (7.0-7.4). At this level, the body has a strong immunity to diseases. Most Americans, however, have a pH level of 6.2 to 6.4.

When your pH is out of the normal range, all sorts of bad things happen. For one thing, disease-producing organisms thrive. This explains why some people exposed to certain bacteria or viruses get sick while others don't.

Acidic conditions can cause muscles to constrict and inhibit the exchange of nutrients and waste products in muscle cells, causing fatigue, soreness, and pain. In fact, a pH imbalance affects all cellular activity in the body and can lead to a wide range of degenerative diseases and symptoms.

Among other things, acidic blood blocks vitamin absorption, creates toxic buildup in clogged cells, slows organ function, prevents proper digestion, creates excess gas and bloating, causes unhealthy weight gain, and speeds the aging process.

When pH is lower than 7.0, aging is accelerated because natural acid salts build up in the walls of your cells, causing them to stiffen and dry up. By the same token, aging is slowed when acid waste is removed from the body.