VOLUNTEERS who take part in clinical trials are being thanked today.
Thousands of people get involved in research which helps provide evidence on new ways of treating patients or developing drugs.
The trials aim to improve care for people with conditions such as cancer, mental health issues, diabetes, cardiovascular disease and stroke.
Today marks the anniversary of what is regarded as the first clinical trial, carried out by naval surgeon James Lind, who set out to get to grips with scurvy in 1747. He divided 12 sailors into pairs, with each of the groups receiving a different dietary supplement. His trial showed that adding oranges and lemons to their diet led to an improvement in the condition.
Chief medical officer for Wales Ruth Hussey said: "There are many different ways that people can take part in this research, from allowing researchers to look at their medical notes to giving a blood sample, filling in a questionnaire to receiving a new treatment."