# New Normal - Higher TDD = Shorter CGM Sensor Lifespan?

**URL:** <https://forum.fudiabetes.org/t/new-normal-higher-tdd-shorter-cgm-sensor-lifespan/6629>\
**Category:** Child\
**Tags:** cgm, tdd\
**Created:** [February 15, 2019, 5:19pm UTC](https://forum.fudiabetes.org/t/new-normal-higher-tdd-shorter-cgm-sensor-lifespan/6629 "2019-02-15T17:19:43Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Beacher](https://avatars.discourse-cdn.com/v4/letter/b/a6a055/32.png) [@Beacher](https://forum.fudiabetes.org/u/Beacher)\
**Post date:** [February 15, 2019, 5:29pm UTC](https://forum.fudiabetes.org/t/new-normal-higher-tdd-shorter-cgm-sensor-lifespan/6629/2 "2019-02-15T17:29:29Z")

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Seems to me they couldn’t be related, but you may already have answered your own question. Did you start using a newer supply of sensors?

> [@Why are my G5 sensors not lasting as long?](https://forum.fudiabetes.org/t/why-are-my-g5-sensors-not-lasting-as-long/5420/30):
>
> Sounds like we are the exception, but we hardly ever have issues with our sensors (G5). In fact, I can’t remember the last time we didn’t get at least 12 days from a sensor…most of the time 2 full weeks. Maybe we’re the only ones getting “the good batches?” On second thought…maybe the issue is that I’m still using the OLD SUPPLY of sensors??? Maybe when I get up to the stock that was built in the timeframe being discussed we will see more issues (crossing my fingers not)

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