Acute liver failure is a rare condition that occurs quickly and often in people without liver disease. If you or a loved one suddenly develop a yellowing of the skin or eyes, a swollen, tender abdomen, or an unusual change in personality or behaviour, seek medical help immediately. Treatments include medication or - if necessary - a liver transplant.

Low testosterone causes changes in sex and sleep patterns. A healthy diet and exercise can help maintain your strength and energy. Speak to your doctor if you have concerns and be wary of herbal supplements.