Home > Lifestyle > How to travel safely > News News All sections in Travel Health » Conditions of concern » Modes of Travel » Travel diet and fitness » General Travel Advice » Travel Health News Clots in space: How an astronaut's blocked vein brought medical insight Treating an astronaut who developed a blood clot onboard a space station provided fascinating new insights into how zero-gravity conditions compromise blood flow. Quiz Wilderness Survival Skills » Ask EnviroHealth Expert » Assess Test your sun sense » Join Heart to Heart » 8 healthy snacks to fill you Weird things found in airport security WATCH: Cabin pressure – is the air toxic? How healthy is the air you breathe in airplanes? We look into aerotoxic syndrome. NASA twins study explores space, the final genetic frontier A unique study of twin astronauts is helping scientists uncover how the body responds to long space travel. WATCH: There's something about space that's triggering herpes in astronauts There's a cosmic war being fought - against space herpes. Self-driving cars might save lives The introduction of self-driving cars that are just 10% safer than cars driven by humans could save hundreds of thousands of lives over a 15- to 30-year period. Landmark 'living drug' for leukaemia approved The US has cleared a breakthrough cancer treatment that uses gene therapy to turn patients' own blood cells into assassins that attack childhood leukaemia. How to survive the Gauteng heatwave Gauteng, Limpopo, North West province and Mpumalanga are in for a heatwave with temperatures reaching up to 36 degrees C. Here's how to be prepared. How dangerous is talking and driving at the same time? According to a new review, it is important to know that drivers are distracted the moment they take their mind off the road. Treatment for 'kissing bug' approved This chronic condition is caused by the transmission of infected faeces of blood-sucking bugs. Would you feel safe in a driverless ambulance? Automated ambulances can now free up an extra paramedic to care for patients, but studies find that people have mixed feelings about this new development. load more articles advertisement Live healthier Lifestyle » E-cigarettes: Here are five things to know E-cigarettes have become hugely popular in the past decade, but a rash of vaping-linked deaths and illnesses in the US is feeding caution about a product that's already banned in some places. Allergy » Ditch the itch: Researchers find new drug to fight hives A new drug works by targeting an immune system antibody called immunoglobulin E, which is responsible for the allergic reaction that causes hives.