A common medication for diabetes may slow down age-related vision loss, according to new research. People with diabetes who were over the age of 55 and taking metformin -- a prescription drug most commonly used to treat type 2 diabetes -- were 37% less likely to develop intermediate age-related macular degeneration (AMD) over five years compared to those not taking it.

Around one in four people have developed long-haul symptoms of COVID-19, experiencing fatigue, brain fog, chronic cough, chest pain and more for three months or longer.