Daily exercising has many health benefits, even for those suffering from hypertension. Performing simple exercises like brisk walking, jogging, yoga can help to reduce the stress level and also lower blood pressure levels. But some activities can spike your blood pressure level instantly, leading to dizziness and breathlessness. It is recommended to all those who have a blood pressure reading of 180/100mmHg or more, seek medical advice from their doctor before beginning any new exercise regime. Here are some exercises they must be careful about.