Brain exercises? Just like your biceps need an exercise regime to stay, so does your brain. Although you may not love going to the gym, brain exercises are pretty fun… and really effective to boost cognitive functions, including memory, speed, calculation, concentration, and more. Also known as neurobics, brain aerobics can be performed by anybody at any age. Like cross-training for your brain, neurobics are a great way to retrain your brain to develop new neurological pathways and improve mental fitness. But that’s not the only way to prevent memory loss and boost mental fitness.