U.S. President Joe Biden is "healthy” and remains "fit to successfully execute the duties of the presidency,” his doctors said Friday after he underwent a routine physical exam and colonoscopy just a day before his 79th birthday.

But the president is suffering from a "perceptibly stiffer and less fluid” gait following a series of injuries and is experiencing a more frequent need to clear his throat or cough during public engagements, according to his physician, Kevin O’Connor. And his exam found mild nerve damage in the president’s feet, prompting them to suggest he be fitted with orthotics.

Still, doctors reported no findings "consistent with any cerebellar or other central neurological disorder” or motor weakness. The president is being treated with common prescription and over-the-counter medicines for minor conditions including spinal arthritis and seasonal allergies.