We all know there are negative side effects of drugs but did you know that there are positive side effects of kindness? This evening, David Hamilton will share his latest findings on the subject.

The human body and mind is healthiest when we are being kind because we have 'kindness genes'. Scientific research now shows that being kind makes us happier and helps alleviate depression. It even helps reduce social anxiety. It also physically impacts the brain by altering neural circuits. Kindness also has a huge impact on the heart.

Just as stress hormones negatively impact the body, kindness brings about opposite effects. Its products (which David calls 'molecules of kindness') act directly on blood vessels to soften arteries, reduce blood pressure, improve blood flow to the heart and brain, and even help balance cholesterol. In a similar fashion, kindness also impacts ageing in several different ways, including the process of wrinkling of the skin and the gradual weakening of the immune system.

And if you ever doubted that you make a difference in the world, David will share some research that shows how kindness is contagious and that most acts of kindness impact many more people than the originally intended person or people.