Control blood pressure (BP) (Normal BP - 120/80 mm. Hg)
Control blood sugar (Fasting blood sugar less than 100 mg/dl for non-diabetics and less than 120 mg/dl for diabetics)
Do regular physical activity (However, please modify your out-door activities according to the norms of social-distancing.)
Follow the diet and salt restriction as advised.
If you are a non-vegetarian, you can continue to be so. Increasing the fiber and protein content of the diet by adding more vegetables and fruits in diet is advisable.
References