Chinese herb tea. [Photo/VCG]

On hot summer days, people's blood pressure may often change due to the temperature differences between indoors and outdoors.

This might be dangerous for people who have high blood pressure.

As traditional Chinese medicine emphasizes the importance of drinking tea, here are four kinds of tea that can help people stabilize their blood pressure.

Chinese herb tea. [Photo/VCG]

Haw and chrysanthemum tea

Pour boiling water onto 10g of dried haw slices, 10g of dried chrysanthemum and 10g of cassia seed. Let the herbs soak for about 20 minutes and then it can be immediately enjoyed.

The tea can soothe headaches, swollen eyes and ringing ears caused by high blood pressure.

Chinese herb tea. [Photo/VCG]

Summer herb tea

Put 10g of self-heal and 10g of plantain into boiling water and steep the herbs for 20 minutes. The tea can ease dizziness and dark urine.

Chinese herb tea. [Photo/VCG]

Two-flower tea

The tea's ingredients include dried rose buds, dried flowers of pseudo-ginseng and green tea. It is a good choice for people who have a quick temper or low mood because of high blood pressure.

Chinese herb tea. [Photo/VCG]

Capillary wormwood tea

Rinse 10g of dried capillary wormwood, 10g dried root of kudzu vine and 10g of rhizoma alismatis and put it into a cloth bag. Pour boiling water over the bag. After 20 minutes, the tea can be enjoyed.

The beverage can help lower blood lipids.