A 2016 study suggested that eating ice cream for breakfast may increase mental alertness. However, the study did face criticism for not clarifying whether it was the ice cream itself or the affect of cold temperatures on the brain.
Research studies have found knitting to be associated with reduced levels of stress2, subjective improvement in cognitive functioning3, and a lower risk of cognitive decline4, mild cognitive impairment5, and dementia6,7,
The Eiffel Tower Can Be 15 cm Taller in Summer: Due to thermal expansion, the metal expands when it gets hot, making the tower slightly taller during warmer months.