We now know how Botox enters neurons and paralyses muscles
25 May 2023
Molecular imaging shows that botulinum neurotoxin uses three receptors to enter neurons. The finding could help develop drugs to stop the toxin from infecting cells
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Premium
Pill that zaps stomach cells could treat nausea and lack of appetite
26 April 2023
A capsule that electrically stimulates stomach cells has been tested in pigs, and could one day help treat nausea, vomiting and lack of appetite in people
Melatonin gummies in the US contain far more of hormone than listed
25 April 2023
An analysis of melatonin gummies sold in the US showed that the majority were inaccurately labelled, containing up to 347 per cent the amount of the hormone listed on labels
Losing weight is good for your health – even if you regain it
28 March 2023
People who have obesity and lose weight through behavioural weight loss programmes have lower risks for heart disease and type 2 diabetes years later, despite regaining some weight
Fasting for 24 hours could weaken the immune system
23 February 2023
Mice that fasted for 24 hours had more inflammation and were more likely to die from a bacterial infection than mice on a regular eating schedule
US proposes to ease blood donor restrictions on gay and bisexual men
30 January 2023
The US Food and Drug Administration has proposed changing the screening process for blood donations so that they measure an individual's risk, rather than exclude people based on their sexual orientation or gender
Low testosterone levels may protect women from kidney injury
8 November 2022
Men get acute kidney injury – where kidney performance suddenly declines – at a higher rate than women. An experiment with mice suggests that this could be related to having higher levels of testosterone
Eating in a 10-hour window may reduce the health harms of shift work
4 October 2022
Firefighters working 24-hour shifts who only ate between 9am and 7pm saw improvements in heart health, blood sugar and blood pressure
New York has declared a state of emergency for polio
9 September 2022
Poliovirus types known to cause paralysis have now been found in wastewater samples from five counties in New York state, and genetic tests confirm community spread
Vitamins and dietary supplements are a waste of money for most people
21 June 2022
The US Preventive Services Task Force says there isn't good evidence that supplements protect against cancer or heart disease in most people
