An erlenmeyer flask corked with a liquid with bubbles inside. 

Potion With Bubbles

Medical or educational poster of a person's head and text pointing towards the brain.

Brain Information Health Poster

Test tube or vial filled with medical liquid, blood sample, potion or other fluid.

An energy bar partially full with a heart to the right of the health bar.

A chat bubble containing portions of a mathematical equation or formula.

A round icon with a health symbol in the middle. 

A round-bottom flask corked with a liquid with bubbles inside.

A busy and overworked manager or employee surrounded by charts, graphs, and notifications.