Canned coffee is ubiquitous in Japan, with a large number of companies competing fiercely and offering various types for sale. Canned coffee is already brewed and ready to drink. It is available in supermarkets and convenience stores,[62] with vast numbers of cans being sold in vending machines[63] that offer heated cans in the autumn and winter,[64] and cold cans in the warm months.
Drinking more coffee is linked to a lower risk of depression, according to a review of 26 studies published in Australian & New Zealand Journal of Psychiatry in 2016. For each cup of coffee consumed per day, the risk of depression decreased by 8 percent, the researchers found. However, it's worth noting that too much caffeine can cause problems in people who also suffer from anxiety, negating any beneficial effects the coffee can have on depression risk.
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