Is there a link between rheumatoid arthritis and anxiety? How can I find out which stage of cognitive decline I am in, and how can I prevent Alzheimer’s disease or dementia? Can you unlearn sleeping in the dark? Do some people have stronger mental imagery than others? And does this affect how they learn? How does music affect mental health? How is it possible that we can hear either ‘green needle’ or ‘brainstorm’ whilst the audio fragment remains the same? How does stress affect your brain? Do colours appear the same to everyone? How is it that some people see an object as blue, while others say that same object is green? Can brain implants read and control our minds?