Vitamin D plays a critical role in the growth and development of bones and teeth, but also has diverse effects throughout the body including inhibiting proliferation of abnormal cells.

Osteoarthritis is the most common joint disorder in the world. In Western countries it is one of the most frequent causes of pain, disability and loss of function in adults.

The menopause refers to the final menstrual period and a woman is considered postmenopausal 12 months after her final menstrual period. The average age of natural menopause is 51 years.

The ability to conceive declines with increasing age and this is largely thought to be due to loss of both the quality and the number of primordial follicles in the ...