American scientists have reviewed the findings of the Japanese, which they could only confirm. The Japanese have found through research that ice cream is the most optimal breakfast on hot summer days. Especially if it's homemade ice cream that you prepared the day before.
The key finding is that ice cream in the brain creates special alpha waves that affect confidence, increase activity in the back of the brain, improve circulation, and increase oxygen flow... Ice cream awakens the body not only physically but also mentally.
If you think only weirdos eat ice cream for breakfast, then you must try it. Scientists recommend eating a cup of dairy ice creams (vanilla, chocolate, coffee, cocoa), or nut ice creams (hazelnut, pistachio) in the morning. They also advise always eating ice cream in a darkened room, as brain waves are more effective then.
Also, take your time, eat slowly, and enjoy.
Another thing: always eat ice cream with someone else. It acts as a mental aphrodisiac.