There are several ways that seasonal allergies can make people feel low on energy, reports Live Science.

“The body expends a lot of energy in making all of the cells, proteins and all of the other substances” that build up during an allergic response, also known as inflammation, said Dr. Kara Wada, an allergist and immunologist at The Ohio State University Wexner Medical Center.

This energy expenditure wears out the body and “some of the same chemical signals … in addition to fighting off what it sees as an enemy, makes you feel unwell” and rundown, she said.

Get the full story at Livescience.com