Table salt is made up of two minerals, sodium and chloride, so daily salt intake must be divided by 2.5 to calculate sodium intake. Photograph: Thinkstock

Healthy eating gets more complicated every day. New research into salt intake shows that too little or too much salt can cause health problems. Severa(...)

Watching three or more hours of television a day can double your risk of dying young, research released last night has shown.

We may not have believed our parents when they told us watching too much television was bad for us , but now it has been proven. Watching three or mor(...)

US congressmen and governors and the world’s largest tobacco companies, including Philip Morris, are among the parties to have lobbied the Government to drop its plans for plain cigarette packaging. Photograph: Fabrizio Bensch/Reuters

Four US public health groups have praised the Government’s plan to introduce plain packaging for cigarettes, responding to lobbying efforts by the US (...)

An automated external defibrillator (AED) and dummy. A volunteer can be trained in their use to save lives. Photograph: Thinkstock

If one of your loved ones collapsed in front of you because their heart suddenly stopped beating, would you know what to do? Most of us would feel hel(...)

Cholesterol testing: A high HDL is protective because HDL carries cholesterol away from the arteries and back to the liver, protecting against its accumulation on artery walls. A low HDL can put you at risk of heart disease. Photograph: Getty Images

Occasionally I see people who are upset, even distressed, about an elevated cholesterol test result. Interpreting the results can be difficult, partic(...)

Dr John Ryan, cardiologist and assistant professor at the University of Utah in Salt Lake City. “The reality is patients don’t complain based on organ systems, they complain based on symptoms.”

There are downsides to every job and, in the case of Tipperary-born cardiologist Dr John Ryan, it is telling people they have an incurable illness. Ry(...)

We are in serious danger of missing the bigger picture when it comes to the fat versus sugar debate. “Fat makes you fat” is a half-truth. Yes, too muc(...)

Most children today cannot run as far or as fast as their parents did, according to a study of global fitness. Photograph: PA

Most children today cannot run as far or as fast as their parents did, according to a study of global fitness.The decline, which may indicate worse he(...)

A new blood test for pre-eclampsia, a severe pregnancy complication linked to high blood pressure, could save hundreds of babies’ lives a year, say re(...)

Cold salmon frittata. Photograph: Aidan Crawley

As I was growing up, eggs made a regular appearance at tea time. They were scrambled, boiled, poached or fried. A standalone source of protein, someti(...)