There are many, many health benefits to be gained from a regular Bikram Yoga practice including

• improves flexibility and joint mobility
• improves muscle tone and overall body strength
• increases blood flow/circulation to every joint, ligament, tendon, organ and fibre in the body
• improves balance
• lubricates joints
• strengthens the immune system
• eliminates toxins from every organ of the body including the skin
• improves lung capacity
• stimulates and manipulates the major glands in the body i.e. thyroid, pituitary
• regulates chemical imbalances and hormone levels in the body e.g. metabolism, blood pressure
• exercises every system of the body e.g. endocrine, reproductive, digestive, elimination, lymphatic
• improves posture and spinal alignment 
• eases back pain and creates space between each and every vertebrae in the spine
• re-energizes and re-vitalizes the body and mind
• alleviates stress and tension and promotes stress management
• regulates sleep patterns
• promotes use of breath to calm the body and mind
• brings an overall sense of well-being and restores balance in the body
• builds patience and mental focus
• promotes mindfulness
• promotes weight loss
• improves athletic performance - read more.

Bikram Yoga is much more than exercise.
It is a therapy that heals the body, calms the mind and invigorates the soul.