Multitasking in humans let us take an example that we really can focus on more than one task at a time. one year baby trying to walk is fully focused on it can't on other things when he try to do it, he usually fall.
on other hand if you are walking,you can think at the same about tomorrow . It is multitasking but we are not focused on walking its automatic.
if we want to focus on extremely important like we have give instructions to someone we have to stop walking and think.
a small group of population estimated between 2 to 2.5 can do multitasking of the population who are capable of doing more then one complex task at a time.
Research studies shows that women's are better at multitasking then men.
People who think that they are best multitaskers are often actually the worst
Former profferser of psychology in standford University told that people who '' chronically multitasking " are" basically at the terrible sort of cognitive task including multitasking".