This is the 17779th most frequent Russian word.
уменьшает
Reduces.
'Уменьшает' is used to indicate a reduction in intensity or quantity of something, here energy expenditure.
Этот режим работы уменьшает расход энергии.
This mode of operation reduces energy consumption.
Here, 'уменьшает' implies a decline in the likelihood or probability of an event, specifically the onset of diseases.
Регулярное употребление фруктов уменьшает риск болезней.
Regular consumption of fruits reduces the risk of diseases.
In this sentence, 'уменьшает' denotes a limitation on the extent or number of something, specifically the penetration of sounds.