Use your brain!, "I am taxing my brain right now", or "brainwashing someone". Our most important organ controls our body and personality. The human brain weighs 1.3 kg, consists of 60 % fat and consumes 20 % of the basal metabolic rate.
The brain emoji was introduced in 2017 and released as part of the Unicode 11.0 standard. This emoji can be found under the people and body
category. Because the brain emoji has been around for quite some time, it should display correctly in the majority of operating systems.