A recent study published in the journal Neuron has found that humans think at an average speed of 10 bits per second, which is surprisingly slow compared to the brain's individual neurons, which can process information much faster. The researchers, led by graduate student Jieyu Zheng, discovered that the brain limits the speed of thought processing, and this rate is also much slower than the body's sensory system. The study suggests that this slow thought processing speed may have evolved as a result of our ancestors needing to focus on a single path forward to survive, and that humans are not as capable of multitasking as they think, with task-switching requiring an associated cost that slows us down.