Home > Lifestyle > How to travel safely How to travel safely All sections in Travel Health » Conditions of concern » Modes of Travel » Travel diet and fitness » General Travel Advice » Travel Health News Altitude can be a killer Climbers and extreme adventurers test the limits of human endurance, but less intrepid trekkers often face the same forces of nature How to travel safely News Over 200 guests fall ill on cruise ships More than 200 people on two different cruise ships have fallen ill with the highly contagious norovirus, which can cause symptoms of vomiting and diarrhea. More in How to travel safely News Shocking footage of bus falling through a massive hole on a highway Warning of mosquito virus gripping travellers Measles outbreak linked to Disney theme parks US government wants airline data to prevent accidents How to travel safely Bounce back after being sick If you're getting over being under the weather, it can be tempting to put the pedal to the metal on the road to recovery. Here's how to bounce back without risking a relapse. See all How to travel safely » General travel advice Always avoid mozzie bites Preventative drugs are important in malarial areas, but none are 100% effective See all General travel advice » Modes of travel Airport scanner fun and games How long did the powers that be think it was going to take for pervy airport security personnel to start putting their fancy new full-body X-ray scanners to creative use? See all Modes of travel » Take action 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 Conditions of concern Altitude sickness Altitude sickness, also called mountain sickness, is an illness that occurs when the body is unable to adjust to high elevations. Symptoms of mountain sickness range from a mild headache and fatigue to a life-threatening build-up of fluid in the lungs or brain. See all Conditions of concern » Travel diet and fitness 6 foods to avoid when travelling Sampling new foods is one of the joys of travel. But beware: you could risk your health, or nausea at the mere thought of what you've eaten. See all Travel diet and fitness » advertisement From our sponsors Is your baby dehydrated? How to tell. Taking charge of your health Man, take care of your health! Live healthier Healthy ears » A middle-ear microphone Deaf and drop-dead gorgeous The gift of hearing The strangest things found in people's ears Doctors have found some very weird things in patients' ears. We look at 7 strange things found in human ears . . . Live allergy free » 10 dog breeds for allergy sufferers Strange allergy cures Managing seasonal allergies Bust those allergies! All you need to know about relieving seasonal allergies.