Berk says your mind, hormone system and immune system are constantly communicating with one another in ways that impact everythi
ng from your mood to your ability to fend off sickness and disease. Take grief: "Grief induces stress hormones, which suppress your immune function, which can lead to sickness," he says. –"You Asked: Does Laughing Have
Real Health Benefits?,"
Markham Heid
Which topic sentence best introduces the supporting evidence in this passage?
Laughter is the brain’s way of getting rid of stress caused by a weak immune system.
Grief can be very painful and is often hard for people to overcome, so they laugh often.
The hormone system is very important and functions only if people are happy.
The systems in our bodies communicate with one another, which affects health and healing.
The last option is correct. The passage uses a specific example, but the main idea of the passage is that the systems in our body are connected, so laughter (because it’s a sign of happiness) can relieve stress and boost our immune system.
