The summer season, Elysse's worst enemy, is that she loses a lot of mass from her body, being a slime composed of a lot of liquid that ends up evaporating because of the heat.
That's why, when it's very hot, Elysse will often eat a lot of ice cream while being dressed only in underwear or in a bikini if she goes to the beach, to reduce the heat on her body as much as possible.
The advantage is that she takes advantage of it to taste practically all the flavors of ice cream and eat a lot. Although it would be easier for her body to have air conditioning at home. XP