To some extent, it all starts with holding a pencil with two fingers and a thumb instead of grabbing it with a fist. “Last year was a struggle.

The effects of long-duration spaceflight on the human body are well-documented, and for Williams and Wilmore, even simple tasks like lifting a pencil will initially feel like a strenuous workout.

A toddler burst into tears while struggling to write her long name while doing homework. Footage shows four-year-old Victoria Merielle Dano holding the pencil and asking her father why they gave her ...