In backstroke, the arms contribute most of the forward movement. The arm stroke consists of two main parts: the power phase (consisting of three separate parts) and the recovery. The arms alternate so that always one arm is underwater while the other arm is recovering. One complete arm turn is considered one cycle.
Marijuana is not considered useful for treating petit mal or absence seizures and may even worsen them. Some patients find that marijuana works in conjunction with other drugs they are taking. Others find that marijuana works best for them when it is used without other drugs.
For the treatment and management of all of these types of glaucoma, medical marijuana can be effective. Medical marijuana's primary benefit for glaucoma patients is its effect on intraocular pressure (IOP). In one study, more than 80% of patients who smoked marijuana using an ice-cooled water pipe experienced a reduction in IOP of 16-45%.