Business Insider has a list of five good reasons why you should kick-start your day not with coffee but with water — a morning ritual beloved by a host of business leaders, including Thrive Global founder and CEO Arianna Huffington.

Staying hydrated helps with body regulation and brain function, as nutritionist Rania Batayneh told BI. Drinking a glass of ice water in the morning, she added, can “boost your alertness and low energy levels.”

Read more about the power of staying hydrated on Business Insider.

Originally published at journal.thriveglobal.com