I said it above, subchronic/intermittent very high BP = higher acute risk of stroke/heart attack, but not talking about very very short term hypertension from lifting heavy. There are three 1. Acute 2. Intermittent 3. Chronic. When squatting or lifting heavy, it's acute.
Example #1: Guy takes 2 gram tren, his BP is 180/100 mmhg during the cycle, his risk of stroke is significantly higher on cycle. Example #2: Healthy, natural male is doing 315 lbs squats, his BP is 180/100 during the squat , his risk of stroke/heart attack is not significantly elevated. At rest, his BP is 120/70 mmhg.