We use our sense of touch to make sense of the environment around us, but it is also essential for our emotional well-being. But during the COVID-19 pandemic, we are faced with the possibility of having to go for months without the possibility of touching or hugging our friends and family. Neurogeneticist Dr Azlina Ahmad Annuar is back with her Brain Waves series to help us find out what happens if our brain is starved of touch.