YOU SAID:
the person with the longest-lasting constipation was 45 days
INTO JAPANESE
便秘が最も長引いた人は45日だった
BACK INTO ENGLISH
The longest duration of constipation was 45 days
INTO JAPANESE
便秘の最長期間は45日だった
BACK INTO ENGLISH
The longest duration of constipation was 45 days
That didn't even make that much sense in English.