For the experimental random group study, 30 adult males with sinusitis were selected between the age group of 35- and 45-years using Tirunelveli's random sample group design and they were divided into two groups A and B with 15 subjects each. It was hypothesized that there would be significant differences in systolic and diastolic blood pressure in adult men suffering from sinusitis than in the control group due to yoga practices. For the two groups (A and B), a pre-test for the selected dependent variables was performed before the start of the training program. Group A received yoga practices; Group B (control group) received no specific treatment but was in active rest. After the eight-week trial period, the two groups (A and B) were retested for the same selected dependent variables. “t” test was used to find out the significant differences between the experimental group and the control group. The results proved that yoga practices reduced systolic and diastolic blood pressure in adult males with a 0.01 confidence level. It is concluded that yoga practices are beneficial for adult men to reduce systolic and diastolic blood pressure.