Health

The hazards of living on the right side of a time zone border

The sun both rises and sets later in the western parts of time zones, by about an hour at the extremes. If sunrise in Nashville, Tennessee is 6:30 a.m., it's about 7:30 a.m. in Amarillo, Texas. Similarly, if sunset in Nashville ...

Diseases, Conditions, Syndromes

Does it make sense to delay children's vaccines?

When Elyse Imamura's son was an infant, she and her husband, Robert, chose to spread out his vaccinations at a more gradual pace than the official schedule recommended.

Diseases, Conditions, Syndromes

Forecasting mosquitoes' global spread

Outbreaks of mosquito-borne illnesses like yellow fever, dengue, Zika and chikungunya are rising around the world. Climate change has created conditions favorable to mosquitoes' spread, but so have human travel and migration ...

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