Pacemaker facts*. 1  A pacemaker is a small device that's placed in the chest or abdomen to help control abnormal heart rhythms. 2  This device uses low-energy electrical pulses to prompt the heart to beat at a normal rate. 3  Pacemakers are used to treat arrhythmias.
Irs definition of full time student? A 21 year old enrolled in college via computer courses [online education] Student has enough credit hours to be considered Full time student.
On the other end of the spectrum, if you're 19 or younger or a full-time student under 24, you are considered a dependent and you don't have to pay taxes. The IRS also exempts self-employed people who earn less than $400 [source: IRS ]. Dependents and some disabled are also exempt.