Each tissue type
has its own agni, which
determines metabolic changes in the tissues and forms by-products, which are
either used in the body or excreted. Menstrual periods for example are a
by-product of rasa.
Malas are the various waste
products of food and the dhatus produced during the normal digestive
and metabolical process. The three primary malas being Purisa (feces), Mutra (urine) and Sveda (sweat).Ayurveda clearly states that
only a balanced condition of dosas, dhatus and malas is ‘arogya’ (good health or disease
free condition) and their imbalance is the cause of ill health or disease.
Purisa is the waste left back
after nutrients of digested food have been absorbed in the small intestine.
While water and salt are absorbed in the large intestine, the residue now
converted into solid faeces,leaves the body. The consistency of the feces
depends both on gastrointestinal mobility and nature of diet.
The tridoshas must be in balance to ensure normal
evacuation. Pitta and kapha help digestion and vata governs the mobility throughout the
process. Any discrepancy or imbalance between these can lead to various
symptoms of abdominal heaviness or pain, flatulence, constipation or diarrhea.
It may also give rise to diseases as rheumatoid arthritis, osteoarthritis,
low-back pain, asthma, bronchitis as well as stomach ulcers and irritable
bowels.
Mutra is derived during the
course of biological processes within the human body. The first stage of urine
formation begins in the large intestine where fluids are absorbed into the
system. The entire urinary system (kidneys, uterus, bladder and urethra) takes
part in the formation and elimination of urine, regulating the fluid balance in
our body and also maintaining blood pressure. Any imbalance of increased or
decreased urine may result in disorders such as kidney stones urinary
infections, cystitis, abdominal pain and bladder disorders.
Sveda is the third primary mala,
and it occurs as a waste product during the synthesis of meda dhatu (fatty tissue). Eliminated through
skin pores, it controls body temperature and helps to regulate the electrolytic
balance. The channels responsible for bringing the sweat to skin surface are
known as sveda vaha srotas.
It is essential that normal formation and flow of sweat takes place as
otherwise it may lead to skin infections, itching/burning sensation over the
body, loss of fluid balance and reduced body temperature.
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