You may be 40 years old, but could your brain already be showing signs of accelerated aging? New research involving more than 18,000 people suggests that the answer may depend on much more than genetics or your date of birth.

You may be 40 years old, but could your brain already be showing signs of accelerated aging? New research involving more than 18,000 people suggests that the answer may depend on much more than genetics or your date of birth.

Most people associate aging with wrinkles, gray hair, and changes in physical strength. Yet one of the body’s most important organs may be aging at a different pace from the rest of us.

The human brain undergoes gradual changes throughout life. But researchers are discovering that these changes do not occur at the same rate in everyone.

Some individuals maintain