Home > Lifestyle > EnviroHealth > News News All sections in Environmental Health » 21st Century Life » FAQs » Animals » Climate and pollution » Hazards and disasters » EnviroHealth News » Green Tips Air pollution increases heart disease risk A study has found an association between air pollution and undesirable changes in cholesterol. Start A Health24 blog » Follow Health24 on Facebook » Test Are you envirohealth savvy? » Ask EnviroHealth Expert » Blood Lions: Bred for the Bullet movie trailer The amazing mountains on Pluto Running 7 continents to save water According to the United Nations 1.8 billion people will experience absolute water scarcity by 2025. One Australian woman, Mina Guli, is on a 7-continent run to change all that. Here's why using the ATM is really gross You might want to wash your hands the next time you withdraw cash from an ATM machine, a new study suggests. Qwaqwa residents battling severe water shortages Villages in Qwaqwa in the Free State, hit by drought in June 2015, are continuing to struggle with severe water shortages despite being close to water schemes. SEE: Potentially dangerous mercury levels in SA retail fish Which South African fish contains the highest levels of mercury? Especially pregnant women are at risk of this neurotoxin. Radon is a silent killer. Could it be in your home? Radon is a dangerous radioactive gas that can cause lung cancer. It has no smell, colour or taste and it can seep into your home from the ground, via water and building materials. Why is SA's government not alerting the public to the dangers and just how worried should we be? Health24 takes a closer look. Fish and chirps? Crickets can help fight world hunger Farmers are raising crickets for human consumption. It is more ecologically sound than meat – but may bug some people. Pizza slice comes at an environmental price Wood burning in thousands of pizza shops and domestic waste burning in São Paulo in Brazil are examples of unaccounted sources of emissions. Cape school gets clean drinking water for the first time Berg River Primary School received a new Lifestraw Community unit that will convert contaminated water into safe drinking water. Residents turn to dirty streams for water as drought rages on As South Africa continues to weather a drought, areas in Nelspruit have been without water for weeks forcing some residents to spend about R1 per litre for water or drink from dirty streams. load more articles advertisement From our sponsors How to care for your vaginal flora Live healthier Hello? » SEE: Interesting facts about hearing loss Earworms: Let it go Is it bad to sleep with earplugs all the time? SEE: Do women hear better than men? The reason why men often appear not to be listening could be because they actually can't hear you. Confident smile? » Acidic drinks can harm your kids' smiles The facts on bleaching your teeth Am I taking good care of my teeth? Why are my teeth stained? We know the rules – brush your teeth twice a day and floss to keep them healthy. But, have you ever wondered what causes those stains that sometimes appear?