Anatomy & Physiology Sweatshirt — 20 Watts of Pure Genius

Showcase your love for science and humor with this clever sweatshirt design. The illustration features the caption "20 Watts of Pure Genius," highlighting the fascinating fact that the human brain generates approximately 20 watts of power—just enough to power a dim incandescent light bulb!

Despite its modest power output, the brain is a powerhouse of activity, consuming about 20% of the body's energy. This energy is crucial for maintaining the brain's complex neural functions, including thinking, learning, and coordinating bodily movements.

This design celebrates the remarkable efficiency of the human brain with a witty twist! Perfect for STEM enthusiasts, this sweatshirt is a fun and educational way to appreciate the incredible organ that drives all our thoughts and actions.

Fit / Fabric / Construction

Unisex fit
Solid Color: 50% cotton, 50% polyester; Heather: 40% cotton, 60% polyester; feels cozy and provides warmth, making it perfect for colder months
Without Side Seams: Knit in one piece using tubular knit, reducing fabric waste and enhancing the garment's appearance
Ribbed Knit Collar with Seam: Ribbed knit makes the collar highly elastic and helps retain its shape

Care Instructions

Machine wash: cold (max 30C or 90F)
Non-chlorine: bleach as needed
Tumble dry: low heat
Do not iron or dry clean

Shipping / Returns

Free standard shipping in the United States.
Made to order: please allow 3–5 business days for production.
U.S. delivery: typically 7–10 business days after production.
International delivery: typically 10–20 business days after production; customs processing may add time.
Returns: request a return within 30 days of delivery for eligible unworn, unused items. Gift cards and personalized items are not returnable. Read our Return Policy.