According to Mihir (@RhythmicAnalyst), to assess the health of a cryptocurrency, traders should analyze weekly charts starting from January 2023. Mihir emphasizes that using these charts provides a clearer picture of a coin's performance, helping traders make informed decisions. This approach is crucial for identifying underperforming or potentially risky 'crap coins' in the market. [Source: Mihir's Twitter post, March 5, 2025]