Need a shot in the arm to help push you through the work week? Put down the coffee mug and  take a look at these 19 photos, curated from around the web by blogger Alden Tan.

“‘No excuses’ may be one of the most motivating things you can tell yourself,” Tan writes. “There’s always someone out there worse off than you are who’s willing to try in spite of their challenges.”

From a buff 70-year-old to a painter with no arms, that’s a sentiment he proves with these inspiring images.