Premature greying of hair astrology

Hair, nails are ruled by planet ketu/kethu. If kethu is not placed properly in an horoscope it causes early ageing which starts with graying of hair. I have seen some interesting cases wherein we see graying at the age of 21.
This aging can be remedied through astrology. This field of astrology gaining momentum is referred to as medical astrology. We can start analyzing the borth chart, fix the planet which causes the problem and provide remedy in form of mudras (hand yogas) and mantras (string of words which have some significant medical powers).
Lets take our case, graying of hair. It usually happens under the following circumstances :
1) If you get married to a person with kethu/ketu in seventh house. If this house happens to be viruchikam/scorpio, kumbham/aquarius the effect is more prominent. It usually occurs in 8 months to 1 year time
2) If kethu is placed in 12th house , called as house of moksha/salvation
It is interesting to see cases with kethu in 7th house getting married to kethu in 12th house. It surely causes premature ageing.
Now lets look at some simple remedies :
1) On a monday start praying to lord ganesha. Ganesha worshipped in siddhivinayak form (red coloured ganapathi) works best
2) Practice the following mudra :
Tip of little finger should touch the tip of thumb. This increase the water content in our body and acts as a great remedy
3) Chant the following mantra 28t imes a day (if not atleast 11 times)
Ohm Kam Ganapathaye Namaha
4) If you can afford to buy komedhakam stone, stud it and wear it in middle finger in form of ring
5) If you can't afford to buy such gems, buy a piece of colour paper, a piece of cloth in komedhakam colour (usually yellowish shade) and keep it in a purse. This is cheapest and best way
6) Feed four-legged animals. It is good to feed dogs black in colour

These remedies are found to lessen the effect of planet kethu. Pray to planet kethu.