Forgetfulness can be a normal part of the ageing process. An estimated 40% of people aged 65 and older struggle with age-related memory loss, with no known cure. Approximately 1% of them will progress to dementia each year. 

Now, a group of researchers from Boston University have found that sending weak electrical currents into the brain for 20 minutes a day over four days improved short-term and long-term memory function in older adults. Participants who received electrical stimulation saw an improvement in memory by 50% to 65%, and the effects lasted after a month without further stimulus. The results of this study are very promising, with the potential for using it to treat Alzheimer's disease, schizophrenia, and other severe cognition impairments. 

A more natural way to boost electrical signals in our brains is by building strong muscles. Muscles are often seen to exist separately from our intellect, but the truth cannot be further. Our muscles and brains are constantly communicating with each other. Physical exercise contributes to our brain health as it increases learning and memory functions.

So the next time you lose motivation to go for a walk or to the gym, remind yourself that you are not only building muscles but also strengthening your brain!