Medical treatment

Q: I would like to know if the IUI treatment for fertility is it halal? 

Q: Medically, a doctor can stop life-support treatment in the following cases: brain dead, no-hope situation or if the treatment will cause more harm than benefit. Is this permissible to stop treatment on a patient in the above circumstances?

Q: Is organ transplant or donation allowed? if yes, in what circumstances is it permissible/impermissible?

Q: Is contraception allowed in Islam? As a medical practitioner, can one issue contraceptive methods to one’s patient? Often, one interacts with non-Muslims who require contraception. If one is aware that this patient is involved in pre-marital/illicit relationships, is this allowed?

Q: I would to know the masla on donating organs in islaam! As well as donating blood?

Q: 

1. Is it permissible to practice yoga for the sake of fitness? 
2. Is reiki (an art of healing) permissible? 
3. Is Tai-chi (a form of Chinese self defense and healing) permissible? 

Q: For the purpose of curing the sickness near the private parts, can we massage recited olive oil or zam zam water on the private parts as a medicine. I have heard that in Mecca people bath with zam zam water, that even reaches the private parts. 

Q: A husband and wife are studying. Can they use contraceptives till the end of their studies to afford them more time to study?

Q: Is auto circumcision, i.e.: those who keep their foreskins permanently retracted recognized as a valid circumcision in Islam? After all, it meets all the requirements for circumcision in Islam, i.e.: by exposing the entire glans and ensuring that the private parts are clean before offering prayers. The only difference is that the foreskin is NOT REMOVED. Besides, by keeping the foreskin permanently retracted, the person already has the desire to be circumcised even though he has not undergone the operation.

Q: Are food and medicine capsules, that contain gelatin from animal sources, Halaal due to the changes that they go through.