Answer: True.
Step-by-step explanation:
It is true that life changes, whether they are positive or negative, can cause stress, so this statement is a true statement. It is more commonly known for negative things to cause stress, but positive things can cause stress too. This type of stress is sometimes known as eustress. Examples of eustress, or "positive" life changes causing stress, can include attending large events, dates, waiting for something exciting, etc.