Researchers have discovered a pill that helps adults learn new skills as quickly as children. A professor at Harvard rewired the brain of a visually impaired women to process images by giving her Alzheimer’s drug donepezil, the Daily Mail reports.

The pill boosts chemicals in the brain, such as serotonin and acetylcholine, which are both found in high concentrations in the brains of young children. These chemicals naturally reduce with age.

The drug donepezil is a cholinesterase inhibitor. This means it increases the amount of acetylcholine around nerve endings and helps boost brain function.

Professor Takao Hensch gave donepezil to a 14-year-old girl called Shannon, a patient at the Boston Children’s Hospital. Shannon has a condition called amblyopia that impairs her vision, also known as a ‘lazy eye.’

Following tests with donepezil, Shannon was able to process images with her affected eye, in the same way a newborn would.