How to Use half-life in a Sentence

half-life

noun

• But the short half-life of 26Al means this growth had to be quick.
  — Linda T. Elkins-Tanton, Scientific American, 1 Dec. 2016
• But technetium-99m has a very short half-life, just six hours or so.
  — Chris Baraniuk, WIRED, 27 Nov. 2024
• Delta 8 has a half-life that ranges from 4 to 12 hours based on these factors.
  — Amber Smith, Discover Magazine, 4 Aug. 2023
• Caffeine has a half-life of roughly five to six hours but can stay in your body longer.
  — Elizabeth Barnes, Verywell Health, 19 Mar. 2025
• Caffeine has a half-life of roughly five to six hours but can stay in your body longer.
  — Elizabeth Barnes, Verywell Health, 19 Mar. 2025
• So, Lynch asks, what if dark matter has a half-life of roughly a billion years?
  — Lyndie Chiou, Scientific American, 30 Apr. 2025
• Most of the chemicals that were released in the derailment have a short half-life, Booth said.
  — Julia Jacobo, ABC News, 7 Mar. 2023
• Drugs can have different half-lives, with some ranging from a few hours to days.
  — Phuoc Anh (anne) Nguyen, Pharmd, Ms, Verywell Health, 17 July 2024
• His efforts to blame everyone else for his own failures are sure to have a very short half-life.
  — Michael Hiltzik, Los Angeles Times, 20 May 2025
• In a Life Kit episode, sleep researcher Matthew Walker said that caffeine has a half-life of about six hours in most people.
  — Malaka Gharib, NPR, 19 May 2025
• Voters’ minds are fleeting and blame has a quick half-life in Washington.
  — Philip Elliott, TIME, 14 Feb. 2025
• Voters’ minds are fleeting and blame has a quick half-life in Washington.
  — Philip Elliott, TIME, 14 Feb. 2025
• Here’s what to know about caffeine’s half-life, plus the amount of caffeine found in your favorite coffee orders.
  — Jillian Kubala, Health, 2 June 2025
• Tritium has a radioactive half-life of a little over 12 years, according to the IAEA.
  — Bloomberg News, oregonlive, 3 July 2023
• The remaining alcohol can take up to five half-lives (i.e. 20–25 hours) to be cleared completely.
  — Angelica Bottaro, Verywell Health, 23 Jan. 2025
• Duration of effects: Adrafinil has a longer half-life than Hydrafinil, which means its effects may last longer.
  — The Salt Lake Tribune, 1 Aug. 2023
• Classic-film cable and streaming services have tended to have short half-lives.
  — Michael Hiltzik, Los Angeles Times, 29 June 2023
• Uranium has been a hot commodity, and its rally could have a long half-life.
  — Jinjoo Lee, WSJ, 9 Jan. 2024
• All uranium is radioactive, and each isotope has its own unique half-life.
  — Kathryn Higley, The Conversation, 16 June 2023
• But even materials with long half-lives can be hazardous over longer periods of time.
  — Julia Jacobo, ABC News, 21 June 2025
• For instance, experiments have shown the proton to be so stable that its half-life must be at least a hundred trillion trillion times the age of the universe.
  — Lyndie Chiou, Scientific American, 30 Apr. 2025
• Image Celebrity status has a half-life, especially when much of your fan base consists of teenage boys.
  — Bruce Schoenfeld, New York Times, 22 Jan. 2025
• By contrast, tritium, the heavy form of hydrogen needed for most other laser fusion concepts, has a half-life of only 12 years.
  — Kenneth Chang, New York Times, 13 Nov. 2023
• But the story doesn’t end there, for the compassion for asylum seekers generated by Kurdi’s image proved to have a short half-life.
  — Vox Staff, Vox, 3 June 2024
• Caffeine has a half-life of two to 12 hours, which is affected by factors such as age, genetics, liver health, and pregnancy.
  — Julie Scott, Verywell Health, 2 July 2025
• Are they doomed to live half-lives, gauged in literal length or internal fulfillment, always under the thumb of one boss or another?
  — Ben Travers, IndieWire, 12 Dec. 2024
• The rare radioactive isotope produced by cosmic rays in the atmosphere, is used to date objects millions of years old, because its half-life is 1.4 million years.
  — Paul Smaglik, Discover Magazine, 10 Feb. 2025
• Tweets in certain languages had a shorter half-life than others, with 49% of Turkish tweets and 42% of Arabic tweets disappearing over the study period.
  — Rob Pegoraro, PCMAG, 20 May 2024
• Another research benefit of phenibut HCL is its long half-life and duration of effects [1].
  — The Salt Lake Tribune, 16 Aug. 2023
• To conduct and study chemical reactions, researchers require an element with a half-life of at least half a second.
  — Stephanie Pappas, Scientific American, 14 May 2024