Aneurysm
When you think of a brain aneurysm, you think of a blood vessel bursting in the brain which can be deadly. This can happen at any age. However, when brain aneurysms do rupture, it does not always become deadly. It can however cause loss of cognitive abilities and memory. If you have had a brain aneurysm, you can restore your memory with the help of therapists and doctors, as well as your cognitive ability.