Historical clue formulations

• Sluggish — 2023-10-08
• Sluggish — 2022-05-18
• Mentally sluggish — 2018-11-25
• Sluggish — 2018-06-30
• Lethargic — 2015-01-28
• Feeling sluggish — 2013-05-29
• Mentally sluggish — 2005-10-13
• Sluggish — 2002-07-14
• Half-awake — 2000-10-26