Video · How does caffeine keep us awake? – Hanan Qasim TwitterShare on Facebook4K 1 232 075 views Ted Education - July 17, 2017 Science Ted More Videos What actually causes high cholesterol? – Hei Man Chan Science · 19 hours ago The history of the world according to rats – Max G. Levy Science · 6 days ago One of the most controversial medical procedures in history – Jenell Johnson Science · 1 week ago The dark history of arsenic – Neil Bradbury Science · 2 weeks ago A day in the life of a martial artist in medieval China – Peter Lorge Science · 2 weeks ago Do you really need to take 10,000 steps a day? – Shannon Odell Science · 3 weeks ago How some friendships last — and others don’t – Iseult Gillespie Science · December 19, 2024 Why animals help each other – Ashley Ward Science · December 17, 2024
