The lymphatic system is a one-way drainage network that collects interstitial fluid, filters it through lymph nodes, and returns it to circulation. Critical for immune surveillance and fluid balance.
Mechanism: Unlike blood, lymph has no central pump. It moves via skeletal muscle contraction, breathing, and intrinsic vessel pulsations. Sedentary behavior congests it; movement clears it.
Use case: Daily walking, deep breathing, sauna, dry brushing, lymphatic massage. Critical post-surgery and during illness recovery.
Caveats: Most 'lymphatic drainage' products and protocols are oversold. The system responds primarily to movement, not to gadgets.