日本百岁及以上老人数量首次超过10万人，达到107,677人1。这一里程碑的实现反映了日本人口结构的急剧变化，同时也凸显了国家面临的严峻社会挑战。在这超过10万名百岁老人中，女性占比高达88%1。其中，京都市的岸本冨佳是目前最年长的女性，现年114岁；熊本县的加藤光则是最年长的男性，现年112岁1。
日本卫生部对这一数字的增长表示欢迎，但同时警告该国面临维持可持续社会保障体系的挑战1。这种乐观与忧虑并存的态度反映了日本人口老龄化问题的复杂性。根据统计，65岁及以上人口目前约占日本总人口的30%，预计到2070年这一比例将上升至接近40%1。与此同时，日本总人口预计将从2008年的峰值1.28亿下降至2070年的8,700万，降幅达30%1。去年日本总生育率创下历史新低的1.14，远低于维持人口稳定所需的2.11。日本首相将这一人口下降趋势称为"安静的紧急状况"1。
从历史视角看，日本百岁老人数量的增长速度令人瞩目。1963年日本开始进行百岁老人调查时，全国仅有153人1。到1981年，这一数字达到1,000人；到1998年，已增至10,000人1。在当下人口危机的背景下，2025年日本47个县中有45个出现人口下降1。值得注意的是，2010年日本政府审计曾发现超过230,000名百岁及以上人员无法被追踪1，这也反映了相关部门在人口管理方面曾面临的挑战。
Japan has reached a historic milestone with more than 100,000 residents aged 100 or older, totaling 107,677 people according to official statistics 1. Women comprise 88 percent of this demographic, with the oldest female being Kishimoto Tomika, 114, from Kyoto City, and the oldest male being Kato Hikari, 112, from Kumamoto Prefecture 1.
While Japan's Ministry of Health expressed satisfaction with the achievement, officials have warned of serious challenges ahead 1. The nation's total population is projected to decline by 30 percent from its 2008 peak of 128 million to 87 million by 2070 1. The percentage of residents aged 65 and older is currently around 30 percent and is expected to reach nearly 40 percent by 2070 1. Prime Minister Saisho Takeichi has characterized the population decline as a "quiet emergency," reflecting concerns about sustaining social security systems 1.
The aging crisis has been compounded by declining birth rates; Japan recorded a historic low fertility rate of 1.14 last year, well below the 2.1 rate needed for population replacement 1. In 2025 alone, 45 of Japan's 47 prefectures experienced population decreases 1. The growth in centenarians has been dramatic—the country had only 153 such residents when systematic surveys began in 1963, reached 1,000 by 1981, and surpassed 10,000 by 1998 1.
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