I want to know the answer to the following question:
What major health risk do people who oppose DST say it increases?
All the background I'm provided with is that "Opponents argue that actual energy savings are inconclusive, that DST increases health risks such as heart attack, that DST can disrupt morning activities, and that the act of changing clocks twice a year is economically and socially disruptive and cancels out any benefit.". Is that enough to answer the question?
Answer: yes