Mercury is the prince among the nine planets in vedic astrology. Obviously a prince is royalty, articulate, aristocratic and has a feeling of superiority over others. If a person can talk his way out of troubles, make money by convincing others and have an informed opinion on range of topics than he is sure to have a good Mercury.

     But there are times when Mercury is considered weak in a horoscope. Below are the list of points where a weak Mercury maybe influencing the native.

1. When a person suffers from defective speech. For example he stammers or lisps or has other speech-defects.
2. Native has some sort of neurological disorder that affects his/her regular day-to-day activities.
3. When there is incomplete education or when area of work is totally unrelated to the educational qualifications.
4. Mercury is also associated with youth. If someone ages earlier than normal than his/her Mercury could be problematic. Ageing earlier than normal can also be associated with Saturn also and it is not always fault of Mercury.
5. Those having skin problems like acne, uneven skin tone and other troubles could have a weak Mercury.
6. A state of cognitive dissonance where more than two opposite beliefs are rampant in native's mind could be due to weak Mercury. This in turn cause acute mental stress to the native.
7. Communication failures and frequently having troubles getting ones point across is also due to weak Mercury
8. In a horoscope association of Mercury's with Moon, Rahu or Ketu is also a sign of being in weak condition.

     Natives with weak Mercury should pray to Lord Vishnu. Lord Vishnu is Shant Akaram Bhujag Shayanam (शान्ताकारं भुजगशयनं) meaning one who can be calm even while resting on a Serpent. A native with weak Mercury does excessive thinking and body along with sensory inputs can't keep up. Praying to Vishnu embed the qualities of Vishnu like calm nature and beautiful persona into the natives.. Chanting the Vishnu Sahasranaam is ideal. If Vishnu Sahasranaam is too hard than natives can also chant "Om Namah Bhagvate Vasudev". This simple mantra is enough for natives with weak Mercury. Don't count number of times you speak this mantra. Just recite it slowly with humming effect. and the sound waves associated with humming effect would help calm nerves. There is absolutely no need for any special havans, gemstone or poojas to aid a weak Mercury.

If you still feel like wearing a gemstone than a green emerald is advised. Do the mantra remedy to strengthen the gemstone yourself. It is foolish to think that someone else does the mantra remedy and you get the fruits of his/her hard work.

The great sage Ved Vyas composed the Budh Japa Mantra which can also aid a weak Mercury.

Budh Japa Mantra

प्रियंगुकलिकाश्यामं रुपेणाप्रतिमं बुधम् I
सौम्यं सौम्यगुणोपेतं तं बुधं प्रणमाम्यहम् II

Priyangu-kalika-shyamam roopenaa-pratimam-budham
Sowmyam-sowmya gunopetam tam budham pranamamyaham

Budh Gayatri Mantra

Om gajadhwajaaya vidmahae sukha hastaaya dheemahi tanno budha: prachodayaat

     Practice emptying the mind by clearing your thoughts and dumping your worries. Fifteen to Thirty minutes a day of emptying mind would do wonders. Regular yoga and pranayam would also help. Do not speak unnecessarily and carefully select your choice of words. Try to stay in silent mode for atleast two hours a day.

     Avoid using soaps on face and rash skin. Try using fullers earth(multani mitti) to clean the face.

     Eating Mung Bean (Vigna radiata) regularly especially on Wednesday is ideal. If possible do not consume anything on Wednesday and eat Mung Bean in sufficient quantity at night. Mung Bean contains thiamine which helps with nervous disorders. Also magnesium and iron are present in Mung Bean which help give energy to cells and body parts.

     Natives with weak Mercury often suffer from indigestion and they should try and drink sufficient quantity of water in the morning. At night they should do the opposite and consume less quantities of water.

     Natives with weak Mercury should give green clothes to poor people. Maternal uncle's and aunt's should be treated with dignity and respect. Also treating young children nicely and giving them gifts would help strengthen the weak Mercury.

     Mercury is young and impressionable planet. It takes in all the qualities both good and bad of its co-tenant just like a young child takes in everything good and bad from his surroundings. In similar manner the natives with weak Mercury should learn to stop giving unnecessary advice and start adapting positive qualities of others around. A weak Mercury would stop giving bad results if native stays in constant learning mode instead of lecturing mode.

If you have any comments, suggestion or advise which can help other readers than you are most welcome to share it.