Key points from article :
Most forms of yoga are thought to aid relaxation and muscle strengthening. But hot yoga, which typically involves going through a strenuous 26 poses over 90 minutes in a warm and humid room.
The study suggested 33 middle-aged adults who were previously sedentary did a three-month course of either hot yoga or similarly high-intensity yoga at a normal temperature.
Both yoga groups showed improvements in the health of their blood vessels compared with the control group.
But the study found out that the practice may offer little benefit over similarly-paced yoga at a more normal temperature.
The study was published in the Experimental Physiology journal.
