The constant deadlines and last-minute changes gave someone gray hair.

He gets gray hair from staying up late studying for exams every night.

She got gray hair from the constant stress of juggling work and childcare.

All the stress of planning the wedding had given someone gray hair, and that someone was me.

His endless deadlines are giving someone gray hair.

Managing three teenagers and a business gives someone gray hair by the time they're forty.

At the edge of the clearing, gray short-tailed opossums rummaged through the leaf litter in search of insects.