I don't see what is wrong with the video, just comparing data, expected and current
During the five heat-periods between June and August 2022, 56,303 deaths occurred in England and Wales and were registered by 7 September; this is 3,271 deaths (6.2%) above the five-year average.
The 2022 heat-period with the largest number of excess deaths was the second heat-period (10 to 25 July), with 2,227 excess deaths (10.4% above average).
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in video, it doesn't say why there is excess deaths, but numbers are 20-30% in some cases, so it is worth to look into