The Checkup: The 5-Minute Ab Workout You Can Definitely Fit Into Your Day 

And more healthy reads for your Wednesday.

• If you’ve got five minutes (c’mon, you’ve got five minutes), you’ve got time for this no-equipment ab workout. You’ll thank us later. [POPSUGAR Fitness]

• Getting a tattoo to boost your immune system? A new study shows that might not be as crazy as it sounds. [Women’s Health]

• A-ha! The answer to why, no matter how hard you try not to, you always fall asleep before your boyfriend. [Independent]

• A little something to subtly pass along to the smokers in your life: According to new research, the best way to go about quitting smoking is to go cold turkey. [NPR]

• Ever wondered “Can you substitute naps for a night of sleep?” The short answer: No. [The New York Times]

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