The surest way to drop blood pressure is to yawn and stretch as much as possible.
Yawning and stretching simultaneously is called pandiculation.
Twisting your neck, wrists, elbows, shoulders, ankles, knees, and hips simultaneously while yawning is therapeutic pandiculation.
Blood pressure is controlled by pneumatics (air pressure), not hydraulics (blood pressure), as any capable Yogi or plumber can tell you.
Air pressure regulates blood pressure, not the other way around.
Sticking out the tongue is another way to drop blood pressure.
Drawing the tongue back as far as possible works too, especially when alternated with tongue extension.
Tongue Yoga is not taught in most Yoga workshops.
Tongue Yoga frees up the thyroid gland and the “nose brain” (rhinencephalon).
Panting with the tongue out can also drop blood pressure.
Ditto alternate nostril breathing, a Yoga technique Adano Ley (Swami Nitty-Gritty) called “therapeutic breathing.”