One of the areas that interested me when I started learning about acupressure points on the palm (refer Health in your hands blog) was how holding your fingers and palms in certain positions have health benefits. These specific positions were called as Mudras. I tried to read about them and try it out in my circles and found it to be working when practiced regularly.
Sharing what I have read and understood thus far…


The tips of the little finger and ring finger touch & press the tip of the thumb.
Joining these finger tips help in increasing stamina, vitality, strength and immunity. Helps one become mentally and physically strong.
This mudra starts the flow of vital energy in our body. Our whole body feels the vibration when we practise this mudra
Prana mudra helps overcome the following disorders: Chronic fatigue, low endurance, impaired immunity, mental tension, anger, irritability, jealousy, pride, restlessness, inflammatory disorders, forgetfulness, dry eyes, cataract, skin rashes, muscle cramps etc. It also helps improve eyesight and improves overall blood circulation.
While one is fasting, practising this mudra helps control hunger and thirst.
I have personally tried it when fatigued and it helps feel afresh!

Tip of the thumb is to be joined to the middle and ring finger
Apana mudra improve digestion and provision of calcium and vitamins across the body. Also, it helps improve the flow of perspiration, urine and stool.
Apana mudra can be used to overcome the following disorders
Constipation, flatulence, piles, absence of sweat, stomach pain, vomiting, hiccups and restlessness. It also soothes tooth ache.

Tip of the small finger to be joined with the tip of the thumb
Varuna mudra affects the water metabolism of the body. It helps to rehydrate the cells, tissues, muscles, skin, joints and cartilage. The element water is associated with taste. Hence, it is useful to overcome disorders like loss of taste and dryness of mouth.
It also helps heal some of the disorders like dryness of eyes, dryness of digestive tract, dry cough, skin dryness leading to rashes, eczema, psoriasis, degeneration of joint cartilages etc. Also, helps to heal conditions like anemia, hormone deficiency, scanty urination, pimples, itching and skin diseases in general. Basically, this mudra helps reduce dryness in the body and beauty and glow to the skin. It helps preserve youthfulness.
Unconsciousness due to sunstroke can be cured by rubbing tips of thumbs and little fingers of the unconscious person.
I have used and suggested these and have found it to be quite helpful. Doing it for 10-15 minutes a day, multiple times over a 21 day period. Reducing stress (in simple terms getting more sleep) and pranayama (slow breathing exercises) during the period would be helpful for the therapy to be effective.