Each of us harbours hundreds of man-made chemicals inside our bodies because we are exposed to them in our daily lives. While individual chemicals may not be of immediate concern to public health, scientists now worry that certain mixtures of them may pose previously underestimated risks to health.
Teenagers rarely have a say in the public health policies that concern them, but we can’t halt the childhood obesity problem without working with them, says Professor Knut-Inge Klepp, executive director of the mental and physical health division at the Norwegian Institute of Public Health.
In remote, rural corners of Malawi, hospitals are often faced with life-and-death decisions. Women in need of emergency caesarean sections, older people with hernias, and children with appendicitis need surgery. But should they be rushed to the operating theatre or transferred to specialists in city hospitals?
Mice that have undergone weight loss surgery experience a change in the composition of their gut bacteria and the functioning of their genes, leading scientists to explore the possibility of mimicking these changes to develop a non-surgical treatment for obesity and liver disease in humans.
Next-generation wheelchairs could incorporate brain-controlled robotic arms and rentable add-on motors in order to help people with disabilities more easily carry out daily tasks or get around a city.
Nearly 100 years ago scientists developed a vaccine for tuberculosis (TB). Today, there are 10 million new cases worldwide and 1.6 million deaths from the disease every year. Increasingly, these cases are becoming difficult to treat as the bug that causes the disease can be resistant to antibiotics. However, several new TB vaccines are under development and there is growing optimism that a new vaccine will emerge, says Helen McShane, professor of vaccinology at Oxford University, UK. This could save millions of lives, she said, but more work is needed to reassure the general public that vaccines are safe and effective.
When an outbreak strikes, speed is critical. Health workers must act quickly not only to contain and treat an emerging or re-emerging disease, but also to use this window to evaluate potential treatments and vaccines. And the challenge becomes even greater in sub-Saharan Africa when you’re trying to develop new approaches in the face of multiple emerging diseases.
Infrared sensors could make taxi, take-off, cruise and landing safer.
New research also reveals that a fertilised egg repairs itself before developing further.
Beyond antibiotic overuse, there may be other causes behind this global threat, says microbiologist.