Lowered levels of cortisol and lactate-two chemicals associated with stress.

Reduction of free radicals- unstable oxygen molecules that can cause tissue damage. They are now thought to be a major factor in aging and in many diseases.

Decreased high blood pressure.

Higher skin resistance. Low skin resistance is correlated with higher stress and anxiety levels.

Drop in cholesterol levels. High cholesterol is associated with cardiovascular disease.

Improved flow of air to the lungs resulting in easier breathing. This has been very helpful to asthma patients.

Younger biological age. On standard measures of aging, long-term  Meditation  practitioners (more than five years) measured 12 years younger than their chronological age.