Add Yahoo as a preferred source to see more of our stories on Google. A new study suggests that people with synesthesia have different pupil reactions depending on the colors they observed. . | Credit ...

A BMJ study of 624,713 Swedish births linked HPV vaccination before pregnancy to 15% lower odds of very preterm birth. What families should know. Ozempic and Zepbound Makers Report Slower Aging Clocks ...

Have you ever tasted a word, or seen colors while listening to music? If you have, you may be among the 1% to 4% of people who have a fascinating trait known as synesthesia. Synesthesia is a ...

Some people see numbers as always having certain colors — for example, they see the number 5 as red. A new study reveals that their eyes react as if they see those colors in the real world. The study ...