According to yoga philosophy, it's the flexibility of the spine, not the number of years, that determines a person's age. Yoga slows down the aging process by giving elasticity to the spine, firming up the skin, removing tension from the body, strengthening the abdominal muscles, eliminating the possibility of a double chin, improving the tone of flabby arm muscles, correcting poor posture, preventing dowager's hump and so on. Yoga lets you trade in characteristics of old age for characteristics of youth.

Yoga is dynamite to make you feel younger with heightened mental prow ness. Longer life often results from following yogic ways of health maintenance. When both external dangers and internal diseases and habits leading to degeneration have been removed, one naturally lives longer

The result of hatha yoga is simply to make men live long. Health is the chief idea, the one goal of hatha yoga. He is determined not to fall sick, and he never does. He lives long. A hundred years is nothing for him; but he is quite young and fresh when he is one hundred and fifty, without one hair turned gray."

The following are some of the anti-ageing effects of yoga,Live longer. Yoga affects all the important determinants of a long life: the brain, glands, spine and internal organs. Increased resistance to disease. Yoga produces a healthy strong body with increased immunity against disease. This increased resistance extends from the common cold to serious diseases like cancer. Increased vitality due to yoga's effect on the brain and glands.

Rejuvenation of the glands.

Yoga has a marked effect on the pituitary, thyroid, adrenal and sex glands. This produces a feeling of well-being, prevents premature ageing and extends sexual virility well into old age. Look and feelyounger. Yoga reduces facial wrinkles and produces a natural 'face-lift'. This is mainly due to the inverted ostures. By doing the inverted postures for a few minutes each day, we reverse the effect of gravity and use it to our advantage. The result is firmer facial muscles, which cause a reduction in wrinkles, and a natural face-lift. The inverted yoga postures often convert gray hair back to its natural color and they will certainly delay the onset of gray hair. This is due to the inverted postures causing an increase in blood supply to the hair follicles in the scalp. Also, the increased flexibility of the neck produced by the asanas removes pressure on the blood vessels and nerves in the neck, causing an even greater blood supply to the scalp. The release of pressure on the nerves in the neck also causes the scalp muscles to relax, since the nerves in the neck supply the scalp muscles. This means that the hair follicles are better nourished and thicker healthier hair is the result.Yoga will take years from your face and add years to your life. As you get older, you will take on an ageless appearance.

Does yoga help in weight management? Most definitely. There are a number of factors involved. Firstly, some of the asanas stimulate sluggish glands to increase their hormonal secretions. The thyroid gland, especially, has a big effect on our weight because it affects body metabolism. There are several asanas, such as the shoulder stand and the fish posture, which are specific for the thyroid gland. Fat metabolism is also increased, so fat is converted to muscle and energy. This means that, as well as losing fat, you will have better muscle tone and a higher vitality level.

Secondly, yoga deep breathing increases the oxygen intake to the body cells, including the fat cells. This causes increased oxidation or burning up of fat cells. ). Yogic exercises induce more continuous and deeper breathing which gradually burns, sometimes forcefully, many of the calories already ingested.

Thirdly, yogic practices that reduce anxiety tend to reduce anxious eating. When under nervous strain we tend to gulp our food without attaining much genuine satisfaction. We end up in eating more. If, on the other hand, we approach our meals with greater calmness of mood, whether produced by habits which have calmed our life or by yoga (like a pause for prayer before a meal), we tend to be less likely to overeat in a frantic effort to quiet our midday anxieties.

Lastly, yogic aids may be employed between meals whenever one becomes tempted to search for a snack. One may deliberately turn to yoga, rather than to the icebox or snack bar, when he feels the need for a lift or relief from restless nervousness. Practicing yoga may make you aware of your weight problem that may also act as a deterrent from overeating.

If you are not overweight, your weight will remain about the same. If you are underweight, you will gain weight. The weight you gain will be healthy firm tissue, not fat. That is, yoga will tend to produce the ideal weight for you. This is due to yoga's effect of 'normalizing' glandular activity.

An article that appeared in the San Francisco Examiner of October 13, 1959 shows that the weight reduction potential of yoga was recognized in the USA more than quarter of a century ago.

"Would you like to lose weight without resorting to the miseries of dieting? Well, try the miseries of Yoga exercises instead. One staunch advocate is Metropolitan Opera star Robert Merrill, who has been practicing these exercises for two years, and keeps trying to win converts. In those two years he has lost twenty pounds and now he's down to a trim, rhythmic-breathing one hundred and sixty, even though he continues to eat like a lumber jack. 'At one time I went on a lot of diets but just couldn't lose any weight,' he said. 'Then along came Yoga and look at me now.' He punched his hard flat stomach and started breathing through one nostril. And to further demonstrate what it's all about, he did a little flip and stood on his head. After that he showed the lotus position, legs scissored under the body. Was he still breathing through one nostril? Yes, the other one. 'If people weren't so lazy they wouldn't have to worry about diets,' he said."

For those whose eating habits, whether at meals or between meals, are believed to be due to feelings of weakness rather than anxieties, most yogic postures and breathing exercises are designed to increase one's strength. Hence, they may relieve feelings of weakness more effectively than additional eating. The exercises themselves, although consuming some energy, also store up energy which, when combined with oxidizing breathing, provide energy that is ready for use rather than for storage.

Yoga and Mental Health

Those practicing yoga experiences a number of factors that results in a profound effect on their mental health. These can be classified under: reduction of tension and restoration of pliability. "personal" and
"social."

1. Reduction Of Tension

Many people who practice yoga speak of "freeing the mind from mental disturbances," "calming the spirit," or "steadying the mind." Reduction of nervousness, irritability and confusion, depression and mental fatigue are some of the benefits experienced. One experiences a relief from the pressure of his "compulsions." His nervousness, especially any jitteriness, should subside or disappear.

The extent to which these benefits may be expected will depend in part upon whether or not one can approach and participate in them willingly and wholeheartedly; for one who tries to practice postures with anxiety cripples his chances for very much benefit.

2. Restoration Of Pliability

"The positive side of the benefits from a full round of yogic exercises may be described as renewal of mental agility. Both mood and capacity for alertness, attentiveness and willingness to tackle problems revive. One may not be able to rekindle boundless enthusiasm late in a working day; early morning, or even noonday, efforts to recharge mental energies can revive a full measure of willingness. Traditional phrases, such as restored "spiritual vitality," intend to convey the complex idea of mental spryness, agreeableness, resiliency, and feelings of confidence and self-sufficiency. Some even testify to attaining feelings of buoyancy and euphoria; these then provide a background or mood of well-being and assurance such that one naturally more fully enjoys both his ability and the worthiness of being more tolerant and generous." Archie Bahm, ‘Executive Yoga’ Personal Values

a. Avoidance of fear:

Yoga is said to result in the reduction of a variety of mental ills. These may range all the way from vague feelings of frustration, persecution, insecurity, on the one hand, to acute and specific types of insanity, on the other.

Yoga is not a cure all for all conditions. But its attack upon, and diminution of, some basic mental ills may indeed be just enough to pay dividends that grow in magnitude.

If, through use of yogic techniques, we can merely halt and reverse some mental cancer, some compulsive complex that keeps us chained to unrelenting, omnipresent and gradually increasing anxiety, we may reset a course which will bring us around to a healthier adjustment. We are all at times insane. We are all, in some degree, insane. Overwhelming waves of tension and stress, which may catch us in periods of physical and mental exhaustion, can produce a spiritual explosion which leaves us so helpless that we are at a loss to know how it all came about.

By recurrent, regular efforts to reduce tension through yogic exercises, we may stay and finally reverse our tendencies toward insanity.

Most of us succumbs to fears and anxieties – some valid and some purely imaginary. For example, as one gets older, he begins to fear that his life has not been sufficiently worth while, that he has fallen short of his goals, that he has failed to attain his proper ambition, that he has lost out in the race to keep up with the Joneses or in his attempt to measure up "in the sight of God"-however he happens to conceive his shortcoming.

Thus, when Ramacharaka, in his ‘Hindu-Yogi Science of Breath’, says one may, by controlled breathing, "practically do away with fear and worry and the baser emotions," he refers to the growing ability of a devoted practitioner to diminish the power which both momentary and permanent fears have over us. One seeks to develop habits of resistance to the disturbing effects of excitement, ambition, antagonism and frustration.

The long-range goal of yoga is not just momentary relaxation, but the living of a relaxed life.

b. Acceptance of Faith in Life. The goal of yoga is confident living. Its aim is to replace pessimism and its varieties such as cynicism with a "Yea-saying" appreciation of life, not only on any given day, but as a gracious, wonderful whole. When you achieve the yogic spirit, then you can say with the Stoics, "I accept the universe."

If you cannot accept all of it, because some problems remain unavoidably troublesome, then you will accept the troubles which you have as (1) yours and (2) enough for you, without wishing you had still more troubles.

Poise, serenity, contentedness, patience, assurance-all of these are positive mental values attainable by anyone who has achieved a willingness to be at peace with himself and the world. The confidence desired is not just enough to do the day's work but enough to live one's whole life and one can do his day's work more confidently if he has already predisposed himself to living his life with trustful serenity.Thus a person seeks through yoga not merely momentary mental agility, but an agile life; not just momentary pliability, but a continuingly pliable existence; not just momentary relief from disturbance, but a permanently peaceful perspective.

Although not everyone who undertakes to experiment with yoga can expect to achieve or maintain the goal described by Shri Yogendra, Yoga: Personal Hygiene, as "exuberant and exultant health, he should notice the sun more often when it shines. Swami Sivananda pictures the goal as "ecstatic joy" (Yoga Asanas).

Dechanet, a Roman Catholic monk who was led into yoga by his Catholic predecessors, gives a vivid account of how he uses yogic techniques as aids to worship. He describes a "euphoria that pervades the story of my experiment. I wish to make it clear that this euphoria is real and lasting and spreads through the various levels of my daily life, physical, Psychical and spiritual" (Christian Yoga). Even though few of us will achieve anything like perpetual exuberance, ecstatic joy or euphoria, attainment of a more trusting outlook on life provides a spiritual soil from which spiritual roses have a better chance to grow. The pragmatic experimentalist will say: "Try it and see."

Yoga's view of sex is the same as of every other issue - moderation. Yoga considers sex to be a natural function, very beneficial in a loving relationship and, of course, essential for the continuation of the human race.

Yogis warn against overindulgence in sex since they consider this will deplete the life force. They state that the sexual secretions contain very concentrated life force and nutrients, since they contain the seeds of life. Depletion of life force results in a reduced vitality level and reduced resistance to disease. It also retards progress from the practice of yoga. A whole field of yoga called Tandric Yoga or Kundalini Yoga is concerned with harnessing the sexual power. Yoga enables one to get into meaningful relationships and enjoy the process, at the same time provides a path to use the powerful energy involved in sex.

The yogis consider that normal sexual function occurs when the reproductive system is in a state of optimum health. They have found that the most effective way of attaining this optimum health state is by doing yoga asanas and breathing exercises. Those who are physiologically weak and partially or wholly impotent may restore potency as they regain their physical health. Steadier practice of milder yogic exercises may yield results when more vigorous bodybuilding workouts end in undue exhaustion. Those who approach sexual matters nervously rather than relaxedly may profit from previous relaxing yogic exercises.

Marriage counselors suggest that a relaxed condition is one of the essentials for a harmonious sex relationship because when hurried and strained it leaves the couple (the woman especially) dissatisfied and irritated, adversely affecting her entire well being. Indra Devi, author of many books on yoga, remarked that "The wives of several of my students have often told me that since their husbands had taken up Yoga exercises, their marital relationships had undergone remarkable changes."

It's true that advanced yogis practice celibacy. They need every ounce of their life force for their quest for cosmic consciousness. They also know that the realization of their goal produces eternal bliss, besides which the brief pleasure of sex pales into insignificance. Their minds have progressed so far that they are not prepared to settle for a watered-down version of happiness.