Volunteers are being sought for a study into the medical powers of ginger.
Ginger is well known for its health benefits
Scientists at Reading University are looking for 36 men and women for a study of the powers of the ginger root, a traditional herbal medicine.
The warming effect of other herbs, such as mustard and chilli, has been linked to increased metabolic rate and better circulation to hands and feet.
Although ginger is said to have a similar effect, this has not yet been properly investigated.
Dr Ann Walker, a lecturer in human nutrition and leading the 'Thermogin' study, said: "Ginger is a favourite herb used by herbal practitioners to warm cold hands and feet, but it also has many other uses.
"It can help with minor digestive problems, and has been shown to reduce inflammation in the joints."
The researchers are looking for healthy individuals between 18 and 40 years old, and in particular people who suffer from cold hands and feet.