The heart rate zone formula is flawed, especially for women. Here's how to rethink your training.

That tension becomes especially clear with heart rate zone training, a popular five-tier system that endurance athletes use to measure effort and fine-tune performance. The well-known formula is ...
eWeek

GPT-5.2 Just Solved a 30-Year Math Problem

GPT-5.2 Pro delivers a Lean-verified proof of Erdős Problem 397, marking a shift from pattern-matching AI to autonomous ...
Health Affairs

Systemic And Structural Racism: Definitions, Examples, Health Damages, And Approaches To Dismantling

Gilbert Gee and Annie Ro depict systemic racism as the hidden base of an iceberg 10 (see illustration in online appendix exhibit 1). 11 The iceberg’s visible part represents the overt racism that ...
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Clicky VS tactile VS linear mechanical keyboard switches with sound tests and examples

There are three main types of mechanical switches: clicky, linear, and tactile. Here are examples and sound tests of a variety of each kind. Clicky Vs Tactile Vs Linear Mechanical Keyboard Switches ...
Investopedia

Understand the Expanded Accounting Equation: Detailed Definition & Formula

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...
Investopedia

Understanding the Agency Problem: Enron and Bernie Madoff Explained

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...