If you’re trying to power up your brain, the last thing you need is to drain it with unintended interactions among medications and supplements you may be taking. Some medications interfere with memory and can even mimic dementia. Others are fine on their own but pose problems when taken with other medications or supplements—or even with certain kinds of food. Cardiac medications, insomnia medications, steroids, pain medications, and others can affect cognition. Talk with your doctor and pharmacist to make sure that your medications aren’t hurting your brain. In some cases, a change in medication or in how you take it can make all the difference to your brain.