Anthony Andrews

Drinking more than 1.4 litres per hour - around six cups - can cause the body's sodium levels to drop so low that cells swell, including those in the brain. That's what happened to Ashley Summers, a mother-of-two in Indiana, who died after guzzling the equivalent of nearly 2 litres in just 20 minutes. The 35-year-old suffered water toxicity, medically known as hyponatremia, collapsed and never regained consciousness.

She was recently voted the most popular member of the Royal family for her ferocious work ethic, dedication to duty and keep calm and carry on attitude. Princess Anne follows the example set by her late mother, the Queen, performing her public role uncomplainingly while carefully protecting her personal life behind the scenes. It is in the privacy of her home in Gloucestershire that she relaxes, enjoying spending time with her loved ones and horse riding - the place where, she says, 'it's really nice to come back and just be yourself.' Although she maintains a residence at St James' Palace for use when in London, the rest of the time she can be found ensconced at her country home, the 700-acre Gatcombe Park (pictured) in the Cotswolds. At Gatcombe, located between the villages of Minchinhampton and Avening in Gloucestershire, the Princess Royal is surrounded by everything she loves: her extended family, complete with horses and bull terriers - and more than one former royal spouse.

Almost 50 years after he died, doctors claim Bruce Lee's (left) death in Hong Kong may have been caused by drinking too much water. We reveal others who died, or come close, from excessive water intake. These include art icon Andy Warhol (right), who died from excessive water intake. Also known as water intoxication, hyponatraemia develops as a result of excess water and can cause swelling on the brain. English actor Anthony Andrews (bottom inset) spoke in 2003 about how he nearly died after drinking eight litres of water.